unify gpu api types into 'gpu_handle'

build.c

@@ -864,6 +864,7 @@ void OnBuild(StringList cli_args)
                             ignore = !(StringEqual(name, Lit("sys_win32.c")) ||
                                        StringEqual(name, Lit("sock_win32.c")) ||
                                        StringEqual(name, Lit("gpu_dx11.c")) ||
+                                       StringEqual(name, Lit("gpu_dx12.c")) ||
                                        StringEqual(name, Lit("playback_wasapi.c")) ||
                                        StringEqual(name, Lit("mp3_mmf.c")) ||
                                        StringEqual(name, Lit("ttf_dwrite.cpp")));

res/shaders_dx11/common.hlsl

@@ -0,0 +1,22 @@
+#define DECL(t, n) t n : n
+#define DESV(t, n, s) t n : s
+
+#define PI      3.14159265359
+#define GOLDEN  1.61803398875
+
+/* Linear color from normalized sRGB */
+float4 linear_from_srgb(float4 srgb)
+{
+    return float4(pow(srgb.rgb, 2.2), srgb.a);
+}
+
+/* Linear color from R8G8B8A8 sRGB  */
+float4 linear_from_srgb32(uint srgb32)
+{
+    float4 res;
+    res.r = ((srgb32 >> 0) & 0xFF) / 255.0;
+    res.g = ((srgb32 >> 8) & 0xFF) / 255.0;
+    res.b = ((srgb32 >> 16) & 0xFF) / 255.0;
+    res.a = ((srgb32 >> 24) & 0xFF) / 255.0;
+    return linear_from_srgb(res);
+}

res/shaders_dx11/grid.hlsl

@@ -0,0 +1,106 @@
+#include "shaders_dx11/common.hlsl"
+
+struct vs_instance {
+    float2x3 xf;
+    float line_thickness;
+    float line_spacing;
+    float2 offset;
+    uint bg0_srgb;
+    uint bg1_srgb;
+    uint line_srgb;
+    uint x_srgb;
+    uint y_srgb;
+};
+
+struct ps_input {
+    DESV(float4, screen_pos, SV_POSITION);
+    DECL(float, line_thickness);
+    DECL(float, line_spacing);
+    DECL(float2, offset);
+    DECL(float4, bg0_lin);
+    DECL(float4, bg1_lin);
+    DECL(float4, line_lin);
+    DECL(float4, x_lin);
+    DECL(float4, y_lin);
+};
+
+/* ========================== *
+ * Globals
+ * ========================== */
+
+StructuredBuffer<vs_instance> G_instance_buffer : register(t0);
+
+cbuffer constants : register(b0)
+{
+    float4x4 G_projection;
+    uint G_instance_offset;
+};
+
+/* ========================== *
+ * Vertex shader
+ * ========================== */
+
+static const float2 G_quad_verts[4] = {
+    float2(-0.5f, -0.5f),
+    float2( 0.5f, -0.5f),
+    float2( 0.5f,  0.5f),
+    float2(-0.5f,  0.5f)
+};
+
+ps_input vs_main(uint instance_id : SV_InstanceID, uint vertex_id : SV_VertexID)
+{
+    vs_instance instance = G_instance_buffer[G_instance_offset + instance_id];
+    float2 vert = G_quad_verts[vertex_id];
+    float2 world_pos = mul(instance.xf, float3(vert, 1)).xy;
+
+    ps_input output;
+    output.screen_pos = mul(G_projection, float4(world_pos, 0, 1));
+    output.line_thickness = instance.line_thickness;
+    output.line_spacing = instance.line_spacing;
+    output.offset = instance.offset;
+    output.bg0_lin = linear_from_srgb32(instance.bg0_srgb);
+    output.bg1_lin = linear_from_srgb32(instance.bg1_srgb);
+    output.line_lin = linear_from_srgb32(instance.line_srgb);
+    output.x_lin = linear_from_srgb32(instance.x_srgb);
+    output.y_lin = linear_from_srgb32(instance.y_srgb);
+
+    return output;
+}
+
+/* ========================== *
+ * Pixel shader
+ * ========================== */
+
+float4 ps_main(ps_input input) : SV_TARGET
+{
+    float2 grid_pos = input.screen_pos.xy + input.offset;
+    float half_thickness = input.line_thickness / 2;
+    float spacing = input.line_spacing;
+
+    float4 color = input.bg0_lin;
+
+    float2 v = abs(round(grid_pos / spacing) * spacing - grid_pos);
+    float dist = min(v.x, v.y);
+
+    if (grid_pos.y <= half_thickness && grid_pos.y >= -half_thickness) {
+        color = input.x_lin;
+    } else if (grid_pos.x <= half_thickness && grid_pos.x >= -half_thickness) {
+        color = input.y_lin;
+    } else if (dist < half_thickness) {
+        color = input.line_lin;
+    } else {
+        bool checker = false;
+        uint cell_x = (uint)(abs(grid_pos.x) / spacing) + (grid_pos.x < 0);
+        uint cell_y = (uint)(abs(grid_pos.y) / spacing) + (grid_pos.y < 0);
+        if (cell_x % 2 == 0) {
+            checker = cell_y % 2 == 0;
+        } else {
+            checker = cell_y % 2 == 1;
+        }
+        if (checker) {
+            color = input.bg1_lin;
+        }
+    }
+
+    return color;
+}

res/shaders_dx11/mesh.hlsl

@@ -0,0 +1,42 @@
+#include "shaders_dx11/common.hlsl"
+
+struct vs_input {
+    DECL(float4, pos);
+    DECL(float4, color_srgb);
+};
+
+struct ps_input {
+    DESV(float4, screen_pos, SV_POSITION);
+    DECL(float4, color_lin);
+};
+
+/* ========================== *
+ * Globals
+ * ========================== */
+
+cbuffer constants : register(b0)
+{
+    float4x4 G_projection;
+};
+
+/* ========================== *
+ * Vertex shader
+ * ========================== */
+
+ps_input vs_main(vs_input input)
+{
+    ps_input output;
+    output.screen_pos = mul(G_projection, float4(input.pos.xy, 0.f, 1.f));
+    output.color_lin = linear_from_srgb(input.color_srgb);
+
+    return output;
+}
+
+/* ========================== *
+ * Pixel shader
+ * ========================== */
+
+float4 ps_main(ps_input input) : SV_TARGET
+{
+    return input.color_lin;
+}

res/shaders_dx11/test.hlsl

@@ -0,0 +1,51 @@
+#include "shaders_dx11/common.hlsl"
+
+struct vs_instance {
+    float2x3 xf;
+};
+
+struct ps_input {
+    DESV(float4, screen_pos, SV_POSITION);
+};
+
+/* ========================== *
+ * Globals
+ * ========================== */
+
+StructuredBuffer<vs_instance> G_instance_buffer : register(t0);
+
+cbuffer constants : register(b0)
+{
+    float4x4 G_projection;
+    uint G_instance_offset;
+};
+
+/* ========================== *
+ * Vertex shader
+ * ========================== */
+
+static const float2 G_quad_verts[4] = {
+    float2(-0.5f, -0.5f),
+    float2( 0.5f, -0.5f),
+    float2( 0.5f,  0.5f),
+    float2(-0.5f,  0.5f)
+};
+
+ps_input vs_main(uint instance_id : SV_InstanceID, uint vertex_id : SV_VertexID)
+{
+    vs_instance instance = G_instance_buffer[G_instance_offset + instance_id];
+    float2 vert = G_quad_verts[vertex_id];
+    float2 world_pos = mul(instance.xf, float3(vert, 1)).xy;
+    ps_input output;
+    output.screen_pos = mul(G_projection, float4(world_pos, 0, 1));
+    return output;
+}
+
+/* ========================== *
+ * Pixel shader
+ * ========================== */
+
+float4 ps_main(ps_input input) : SV_TARGET
+{   
+    return float4(0, 0, 0, 0);
+}

res/shaders_dx11/texture.hlsl

@@ -0,0 +1,74 @@
+#include "shaders_dx11/common.hlsl"
+
+struct vs_instance {
+    float2x3 xf;
+    float2 uv0;
+    float2 uv1;
+    uint tint_srgb;
+    float emittance;
+};
+
+struct ps_input {
+    DESV(float4, screen_pos, SV_POSITION);
+    DECL(float2, uv);
+    DECL(float4, tint_lin);
+};
+
+/* ========================== *
+ * Globals
+ * ========================== */
+
+StructuredBuffer<vs_instance> G_instance_buffer : register(t0);
+
+Texture2D G_texture : register(t1);
+
+SamplerState G_sampler : register(s0);
+
+cbuffer constants : register(b0)
+{
+    float4x4 G_projection;
+    uint G_instance_offset;
+};
+
+/* ========================== *
+ * Vertex shader
+ * ========================== */
+
+static const float2 G_quad_verts[4] = {
+    float2(-0.5f, -0.5f),
+    float2( 0.5f, -0.5f),
+    float2( 0.5f,  0.5f),
+    float2(-0.5f,  0.5f)
+};
+
+static const int2 G_uv_factors[4] = {
+    int2(0, 0),
+    int2(1, 0),
+    int2(1, 1),
+    int2(0, 1)
+};
+
+ps_input vs_main(uint instance_id : SV_InstanceID, uint vertex_id : SV_VertexID)
+{
+    vs_instance instance = G_instance_buffer[G_instance_offset + instance_id];
+    float2 vert = G_quad_verts[vertex_id];
+    float2 uv_factor  = G_uv_factors[vertex_id];
+    float2 world_pos = mul(instance.xf, float3(vert, 1)).xy;
+
+    ps_input output;
+    output.screen_pos = mul(G_projection, float4(world_pos, 0, 1));
+    output.uv = instance.uv0 + uv_factor * (instance.uv1 - instance.uv0);
+    output.tint_lin = linear_from_srgb32(instance.tint_srgb);
+
+    return output;
+}
+
+/* ========================== *
+ * Pixel shader
+ * ========================== */
+
+float4 ps_main(ps_input input) : SV_TARGET
+{
+    float4 color = G_texture.Sample(G_sampler, input.uv) * input.tint_lin;
+    return color;
+}

src/config.h

@@ -76,6 +76,18 @@
 /* If enabled, things like network writes & memory allocations will be tracked in a global statistics struct */
 #define GSTAT_ENABLED 1
 
+
+
+
+
+#define DX12_TEST 0
+
+
+
+
+
+
+
 /* ========================== *
  * Settings
  * ========================== */

src/draw.c

@@ -7,7 +7,7 @@
 #include "collider.h"
 
 GLOBAL struct {
-    struct gpu_texture solid_white;
+    struct gpu_handle solid_white_texture;
 } G = ZI, DEBUG_ALIAS(G, G_draw);
 
 /* ========================== *
@@ -20,7 +20,7 @@ struct draw_startup_receipt draw_startup(struct gpu_startup_receipt *gpu_sr,
     (UNUSED)gpu_sr;
     (UNUSED)font_sr;
     u32 pixel_white = 0xFFFFFFFF;
-    G.solid_white = gpu_texture_alloc(GPU_TEXTURE_FORMAT_R8G8B8A8_UNORM, 0, V2I32(1, 1), &pixel_white);
+    G.solid_white_texture = gpu_texture_alloc(GPU_TEXTURE_FORMAT_R8G8B8A8_UNORM, 0, V2I32(1, 1), &pixel_white);
     return (struct draw_startup_receipt) { 0 };
 }
 
@@ -28,7 +28,7 @@ struct draw_startup_receipt draw_startup(struct gpu_startup_receipt *gpu_sr,
  * View
  * ========================== */
 
-void draw_set_view(struct gpu_cmd_store store, struct xform xf)
+void draw_set_view(struct gpu_handle store, struct xform xf)
 {
     struct gpu_cmd_params cmd = ZI;
     cmd.kind = GPU_CMD_KIND_DRAW_VIEW;
@@ -40,7 +40,7 @@ void draw_set_view(struct gpu_cmd_store store, struct xform xf)
  * Texture
  * ========================== */
 
-void draw_texture(struct gpu_cmd_store store, struct draw_texture_params params)
+void draw_texture(struct gpu_handle store, struct draw_texture_params params)
 {
     struct gpu_cmd_params cmd = ZI;
     cmd.kind = GPU_CMD_KIND_DRAW_TEXTURE;
@@ -57,7 +57,7 @@ void draw_texture(struct gpu_cmd_store store, struct draw_texture_params params)
  * Fill shapes
  * ========================== */
 
-void draw_poly_ex(struct gpu_cmd_store store, struct v2_array vertices, struct gpu_indices indices, u32 color)
+void draw_poly_ex(struct gpu_handle store, struct v2_array vertices, struct gpu_indices indices, u32 color)
 {
     struct gpu_cmd_params cmd = ZI;
     cmd.kind = GPU_CMD_KIND_DRAW_MESH;
@@ -68,7 +68,7 @@ void draw_poly_ex(struct gpu_cmd_store store, struct v2_array vertices, struct g
 }
 
 /* Draws a filled polygon using triangles in a fan pattern */
-void draw_poly(struct gpu_cmd_store store, struct v2_array vertices, u32 color)
+void draw_poly(struct gpu_handle store, struct v2_array vertices, u32 color)
 {
     if (vertices.count >= 3) {
         struct temp_arena scratch = scratch_begin_no_conflict();
@@ -94,7 +94,7 @@ void draw_poly(struct gpu_cmd_store store, struct v2_array vertices, u32 color)
     }
 }
 
-void draw_circle(struct gpu_cmd_store store, struct v2 pos, f32 radius, u32 color, u32 detail)
+void draw_circle(struct gpu_handle store, struct v2 pos, f32 radius, u32 color, u32 detail)
 {
     struct temp_arena scratch = scratch_begin_no_conflict();
 
@@ -116,7 +116,7 @@ void draw_circle(struct gpu_cmd_store store, struct v2 pos, f32 radius, u32 colo
     scratch_end(scratch);
 }
 
-void draw_quad(struct gpu_cmd_store store, struct quad quad, u32 color)
+void draw_quad(struct gpu_handle store, struct quad quad, u32 color)
 {
     LOCAL_PERSIST u16 indices_array[6] = {
         0, 1, 2,
@@ -131,11 +131,11 @@ void draw_quad(struct gpu_cmd_store store, struct quad quad, u32 color)
  * Line shapes
  * ========================== */
 
-void draw_gradient_line(struct gpu_cmd_store store, struct v2 start, struct v2 end, f32 thickness, u32 start_color, u32 end_color)
+void draw_gradient_line(struct gpu_handle store, struct v2 start, struct v2 end, f32 thickness, u32 start_color, u32 end_color)
 {
 #if 0
     struct quad quad = quad_from_line(start, end, thickness);
-    draw_texture(store, DRAW_TEXTURE_PARAMS(.texture = G.solid_white, .tint0 = start_color, .tint1 = end_color, .quad = quad));
+    draw_texture(store, DRAW_TEXTURE_PARAMS(.texture = G.solid_white_texture, .tint0 = start_color, .tint1 = end_color, .quad = quad));
 #else
     /* Placeholder */
     (UNUSED)end_color;
@@ -144,19 +144,19 @@ void draw_gradient_line(struct gpu_cmd_store store, struct v2 start, struct v2 e
 #endif
 }
 
-void draw_line(struct gpu_cmd_store store, struct v2 start, struct v2 end, f32 thickness, u32 color)
+void draw_line(struct gpu_handle store, struct v2 start, struct v2 end, f32 thickness, u32 color)
 {
     struct quad quad = quad_from_line(start, end, thickness);
     draw_quad(store, quad, color);
 }
 
-void draw_ray(struct gpu_cmd_store store, struct v2 pos, struct v2 rel, f32 thickness, u32 color)
+void draw_ray(struct gpu_handle store, struct v2 pos, struct v2 rel, f32 thickness, u32 color)
 {
     struct quad quad = quad_from_ray(pos, rel, thickness);
     draw_quad(store, quad, color);
 }
 
-void draw_poly_line(struct gpu_cmd_store store, struct v2_array points, b32 loop, f32 thickness, u32 color)
+void draw_poly_line(struct gpu_handle store, struct v2_array points, b32 loop, f32 thickness, u32 color)
 {
     if (points.count >= 2) {
         for (u64 i = 1; i < points.count; ++i) {
@@ -174,7 +174,7 @@ void draw_poly_line(struct gpu_cmd_store store, struct v2_array points, b32 loop
     }
 }
 
-void draw_circle_line(struct gpu_cmd_store store, struct v2 pos, f32 radius, f32 thickness, u32 color, u32 detail)
+void draw_circle_line(struct gpu_handle store, struct v2 pos, f32 radius, f32 thickness, u32 color, u32 detail)
 {
     struct temp_arena scratch = scratch_begin_no_conflict();
 
@@ -196,14 +196,14 @@ void draw_circle_line(struct gpu_cmd_store store, struct v2 pos, f32 radius, f32
     scratch_end(scratch);
 }
 
-void draw_quad_line(struct gpu_cmd_store store, struct quad quad, f32 thickness, u32 color)
+void draw_quad_line(struct gpu_handle store, struct quad quad, f32 thickness, u32 color)
 {
     struct v2 points[] = { quad.p0, quad.p1, quad.p2, quad.p3 };
     struct v2_array a = { .points = points, .count = ARRAY_COUNT(points) };
     draw_poly_line(store, a, true, thickness, color);
 }
 
-void draw_arrow_line(struct gpu_cmd_store store, struct v2 start, struct v2 end, f32 thickness, f32 arrowhead_height, u32 color)
+void draw_arrow_line(struct gpu_handle store, struct v2 start, struct v2 end, f32 thickness, f32 arrowhead_height, u32 color)
 {
     const f32 head_width_ratio = 0.5f;  /* Width of arrowhead relative to its length */
 
@@ -233,13 +233,13 @@ void draw_arrow_line(struct gpu_cmd_store store, struct v2 start, struct v2 end,
     draw_quad(store, line_quad, color);
 }
 
-void draw_arrow_ray(struct gpu_cmd_store store, struct v2 pos, struct v2 rel, f32 thickness, f32 arrowhead_height, u32 color)
+void draw_arrow_ray(struct gpu_handle store, struct v2 pos, struct v2 rel, f32 thickness, f32 arrowhead_height, u32 color)
 {
     struct v2 end = v2_add(pos, rel);
     draw_arrow_line(store, pos, end, thickness, arrowhead_height, color);
 }
 
-void draw_collider_line(struct gpu_cmd_store store, struct xform draw_xf, struct collider_shape shape, struct xform shape_xf, f32 thickness, u32 color, u32 detail)
+void draw_collider_line(struct gpu_handle store, struct xform draw_xf, struct collider_shape shape, struct xform shape_xf, f32 thickness, u32 color, u32 detail)
 {
     struct temp_arena scratch = scratch_begin_no_conflict();
 
@@ -262,7 +262,7 @@ void draw_collider_line(struct gpu_cmd_store store, struct xform draw_xf, struct
  * Grid
  * ========================== */
 
-void draw_grid(struct gpu_cmd_store store, struct xform xf, u32 bg0_color, u32 bg1_color, u32 line_color, u32 x_color, u32 y_color, f32 thickness, f32 spacing, struct v2 offset)
+void draw_grid(struct gpu_handle store, struct xform xf, u32 bg0_color, u32 bg1_color, u32 line_color, u32 x_color, u32 y_color, f32 thickness, f32 spacing, struct v2 offset)
 {
     struct gpu_cmd_params cmd = ZI;
     cmd.kind = GPU_CMD_KIND_DRAW_GRID;
@@ -283,7 +283,7 @@ void draw_grid(struct gpu_cmd_store store, struct xform xf, u32 bg0_color, u32 b
  * ========================== */
 
  /* Returns the rect of the text area */
-struct rect draw_text(struct gpu_cmd_store store, struct draw_text_params params)
+struct rect draw_text(struct gpu_handle store, struct draw_text_params params)
 {
     struct temp_arena scratch = scratch_begin_no_conflict();
 

src/draw.h

@@ -14,7 +14,7 @@ struct draw_startup_receipt draw_startup(struct gpu_startup_receipt *gpu_sr,
  * View
  * ========================== */
 
-void draw_set_view(struct gpu_cmd_store store, struct xform xf);
+void draw_set_view(struct gpu_handle store, struct xform xf);
 
 /* ========================== *
  * Texture
@@ -28,54 +28,54 @@ void draw_set_view(struct gpu_cmd_store store, struct xform xf);
 
 struct draw_texture_params {
     struct xform xf;
-    struct gpu_texture texture;  /* Overrides sprite if set */
+    struct gpu_handle texture;  /* Overrides sprite if set */
     struct sprite_tag sprite;
     struct clip_rect clip;
     u32 tint;
     f32 emittance;
 };
 
-void draw_texture(struct gpu_cmd_store store, struct draw_texture_params params);
+void draw_texture(struct gpu_handle store, struct draw_texture_params params);
 
 /* ========================== *
  * Fill shapes
  * ========================== */
 
-void draw_poly_ex(struct gpu_cmd_store store, struct v2_array vertices, struct gpu_indices indices, u32 color);
+void draw_poly_ex(struct gpu_handle store, struct v2_array vertices, struct gpu_indices indices, u32 color);
 
-void draw_poly(struct gpu_cmd_store store, struct v2_array points, u32 color);
+void draw_poly(struct gpu_handle store, struct v2_array points, u32 color);
 
-void draw_circle(struct gpu_cmd_store store, struct v2 pos, f32 radius, u32 color, u32 detail);
+void draw_circle(struct gpu_handle store, struct v2 pos, f32 radius, u32 color, u32 detail);
 
-void draw_quad(struct gpu_cmd_store store, struct quad quad, u32 color);
+void draw_quad(struct gpu_handle store, struct quad quad, u32 color);
 
 /* ========================== *
  * Line shapes
  * ========================== */
 
-void draw_gradient_line(struct gpu_cmd_store store, struct v2 start, struct v2 end, f32 thickness, u32 start_color, u32 end_color);
+void draw_gradient_line(struct gpu_handle store, struct v2 start, struct v2 end, f32 thickness, u32 start_color, u32 end_color);
 
-void draw_line(struct gpu_cmd_store store, struct v2 start, struct v2 end, f32 thickness, u32 color);
+void draw_line(struct gpu_handle store, struct v2 start, struct v2 end, f32 thickness, u32 color);
 
-void draw_ray(struct gpu_cmd_store store, struct v2 pos, struct v2 rel, f32 thickness, u32 color);
+void draw_ray(struct gpu_handle store, struct v2 pos, struct v2 rel, f32 thickness, u32 color);
 
-void draw_poly_line(struct gpu_cmd_store store, struct v2_array points, b32 loop, f32 thickness, u32 color);
+void draw_poly_line(struct gpu_handle store, struct v2_array points, b32 loop, f32 thickness, u32 color);
 
-void draw_circle_line(struct gpu_cmd_store store, struct v2 pos, f32 radius, f32 thickness, u32 color, u32 detail);
+void draw_circle_line(struct gpu_handle store, struct v2 pos, f32 radius, f32 thickness, u32 color, u32 detail);
 
-void draw_quad_line(struct gpu_cmd_store store, struct quad quad, f32 thickness, u32 color);
+void draw_quad_line(struct gpu_handle store, struct quad quad, f32 thickness, u32 color);
 
-void draw_arrow_line(struct gpu_cmd_store store, struct v2 start, struct v2 end, f32 thickness, f32 arrowhead_height, u32 color);
+void draw_arrow_line(struct gpu_handle store, struct v2 start, struct v2 end, f32 thickness, f32 arrowhead_height, u32 color);
 
-void draw_arrow_ray(struct gpu_cmd_store store, struct v2 pos, struct v2 rel, f32 thickness, f32 arrowhead_height, u32 color);
+void draw_arrow_ray(struct gpu_handle store, struct v2 pos, struct v2 rel, f32 thickness, f32 arrowhead_height, u32 color);
 
-void draw_collider_line(struct gpu_cmd_store store, struct xform draw_xf, struct collider_shape shape, struct xform shape_xf, f32 thickness, u32 color, u32 detail);
+void draw_collider_line(struct gpu_handle store, struct xform draw_xf, struct collider_shape shape, struct xform shape_xf, f32 thickness, u32 color, u32 detail);
 
 /* ========================== *
  * Grid
  * ========================== */
 
-void draw_grid(struct gpu_cmd_store store, struct xform xf, u32 bg0_color, u32 bg1_color, u32 line_color, u32 x_color, u32 y_color, f32 thickness, f32 spacing, struct v2 offset);
+void draw_grid(struct gpu_handle store, struct xform xf, u32 bg0_color, u32 bg1_color, u32 line_color, u32 x_color, u32 y_color, f32 thickness, f32 spacing, struct v2 offset);
 
 /* ========================== *
  * Text
@@ -123,6 +123,6 @@ struct draw_text_params {
     struct string str;
 };
 
-struct rect draw_text(struct gpu_cmd_store store, struct draw_text_params params);
+struct rect draw_text(struct gpu_handle store, struct draw_text_params params);
 
 #endif

src/font.c

@@ -119,7 +119,7 @@ INTERNAL WORK_TASK_FUNC_DEF(font_load_asset_task, vparams)
     resource_close(&res);
 
     /* Send texture to GPU */
-    struct gpu_texture texture = gpu_texture_alloc(GPU_TEXTURE_FORMAT_R8G8B8A8_UNORM, 0, V2I32(result.image_data.width, result.image_data.height), result.image_data.pixels);
+    struct gpu_handle texture = gpu_texture_alloc(GPU_TEXTURE_FORMAT_R8G8B8A8_UNORM, 0, V2I32(result.image_data.width, result.image_data.height), result.image_data.pixels);
 
     /* Allocate store memory */
     struct font *font = NULL;

src/font.h

@@ -21,7 +21,7 @@ struct font_glyph {
 };
 
 struct font {
-    struct gpu_texture texture;
+    struct gpu_handle texture;
     u32 image_width;
     u32 image_height;
     f32 point_size;

src/gpu.h

@@ -3,9 +3,6 @@
 
 struct sys_window;
 
-#define GPU_TEXTURE_MAX_WIDTH 16384
-#define GPU_TEXTURE_MAX_HEIGHT 16384
-
 /* ========================== *
  * Startup
  * ========================== */
@@ -13,6 +10,16 @@ struct sys_window;
 struct gpu_startup_receipt { i32 _; };
 struct gpu_startup_receipt gpu_startup(struct sys_window *window);
 
+/* ========================== *
+ * Handle
+ * ========================== */
+
+struct gpu_handle {
+    u64 v;
+};
+
+void gpu_release(struct gpu_handle handle);
+
 /* ========================== *
  * Texture
  * ========================== */
@@ -30,17 +37,11 @@ enum gpu_texture_flag {
     GPU_TEXTURE_FLAG_TARGETABLE     = (1 << 0)
 };
 
-struct gpu_texture {
+struct gpu_handle gpu_texture_alloc(enum gpu_texture_format format, u32 flags, struct v2i32 size, void *initial_data);
-    u64 handle;
-};
 
-struct gpu_texture gpu_texture_alloc(enum gpu_texture_format format, u32 flags, struct v2i32 size, void *initial_data);
+void gpu_texture_clear(struct gpu_handle target_texture, u32 clear_color);
 
-void gpu_texture_release(struct gpu_texture t);
+struct v2i32 gpu_texture_get_size(struct gpu_handle texture);
-
-void gpu_texture_clear(struct gpu_texture target_texture, u32 clear_color);
-
-struct v2i32 gpu_texture_get_size(struct gpu_texture texture);
 
 /* ========================== *
  * Cmd buffer
@@ -76,7 +77,7 @@ struct gpu_cmd_params {
         struct {
             struct xform xf;
             struct sprite_tag sprite;
-            struct gpu_texture texture;
+            struct gpu_handle texture;
             struct clip_rect clip;
             u32 tint;
             f32 emittance;
@@ -98,17 +99,11 @@ struct gpu_cmd_params {
     };
 };
 
-struct gpu_cmd_store {
+struct gpu_handle gpu_cmd_store_alloc(void);
-    u64 handle;
-};
 
-struct gpu_cmd_store gpu_cmd_store_alloc(void);
+void gpu_push_cmd(struct gpu_handle gpu_cmd_store, struct gpu_cmd_params params);
 
-void gpu_cmd_store_release(struct gpu_cmd_store gpu_cmd_store);
+void gpu_submit_cmds(struct gpu_handle gpu_cmd_store);
-
-void gpu_push_cmd(struct gpu_cmd_store gpu_cmd_store, struct gpu_cmd_params params);
-
-void gpu_submit_cmds(struct gpu_cmd_store gpu_cmd_store);
 
 /* ========================== *
  * Dispatch
@@ -116,31 +111,25 @@ void gpu_submit_cmds(struct gpu_cmd_store gpu_cmd_store);
 
 struct gpu_dispatch_cmds_array {
     u64 count;
-    struct gpu_cmd_store **cmds;
+    struct gpu_handle **stores;
 };
 
 struct gpu_dispatch_params {
     struct gpu_dispatch_cmds_array cmds_array;
-    struct gpu_texture draw_target;
+    struct gpu_handle draw_target;
     struct rect draw_target_viewport;
 };
 
-struct gpu_dispatch_state {
+struct gpu_handle gpu_dispatch_state_alloc(void);
-    u64 handle;
-};
 
-struct gpu_dispatch_state gpu_dispatch_state_alloc(void);
+void gpu_dispatch(struct gpu_handle gpu_dispatch_state, struct gpu_dispatch_params params);
-
-void gpu_dispatch_state_release(struct gpu_dispatch_state gpu_dispatch_state);
-
-void gpu_dispatch(struct gpu_dispatch_state gpu_dispatch_state, struct gpu_dispatch_params params);
 
 /* ========================== *
  * Backbuffer
  * ========================== */
 
  /* Returns a texture representing the internal backbuffer. Lifetime is managed by gpu layer. */
-struct gpu_texture gpu_recreate_backbuffer(struct v2i32 size);
+struct gpu_handle gpu_recreate_backbuffer(struct v2i32 size);
 
 /* Presents the backbuffer to the screen */
 void gpu_swap_backbuffer(i32 vsync);

src/gpu_dx11.c

@@ -1,3 +1,5 @@
+#if !DX12_TEST
+
 #include "gpu.h"
 #include "resource.h"
 #include "sys.h"
@@ -55,6 +57,19 @@ enum dx11_shader_kind {
     NUM_DX11_SHADER_KINDS
 };
 
+enum dx11_handle_kind {
+    DX11_HANDLE_KIND_NONE,
+    DX11_HANDLE_KIND_TEXTURE,
+    DX11_HANDLE_KIND_CMD_STORE,
+    DX11_HANDLE_KIND_DISPATCH_STATE,
+
+    NUM_DX11_HANDLE_KINDS
+};
+
+struct dx11_handle_header {
+    enum dx11_handle_kind kind;
+};
+
 struct dx11_shader {
     enum dx11_shader_kind kind;
     b32 valid;  /* Is this shader allocated */
@@ -64,6 +79,8 @@ struct dx11_shader {
 };
 
 struct dx11_dispatch_state {
+    struct dx11_handle_header header;
+
     struct dx11_texture *albedo;
     struct dx11_buffer *constant_buffer;
 
@@ -114,7 +131,7 @@ struct dx11_cmd {
             u32 index_count;
         } mesh;
         struct {
-            struct gpu_texture texture;  /* Overrides sprite if set */
+            struct gpu_handle texture;  /* Overrides sprite if set */
             struct sprite_tag sprite;
             u32 instance_offset;
             u32 instance_count;
@@ -133,6 +150,8 @@ struct dx11_cmd {
 };
 
 struct dx11_cmd_store {
+    struct dx11_handle_header header;
+
     /* Commands w/ data still in cpu memory */
     struct arena cpu_cmds_arena;
     struct dx11_cmd *cpu_first_cmd;
@@ -163,6 +182,8 @@ struct dx11_cmd_store {
 };
 
 struct dx11_texture {
+    struct dx11_handle_header header;
+
     ID3D11Texture2D *texture;
     ID3D11ShaderResourceView *srv;
     ID3D11RenderTargetView *rtv;
@@ -240,18 +261,6 @@ GLOBAL struct {
 
 } G = ZI, DEBUG_ALIAS(G, G_gpu_dx11);
 
-/* ========================== *
- * Util
- * ========================== */
-
- /* Calculate the view projection matrix */
-INLINE struct mat4x4 calculate_vp(struct xform view, f32 viewport_width, f32 viewport_height)
-{
-    struct mat4x4 projection = mat4x4_from_ortho(0.0, viewport_width, viewport_height, 0.0, -1.0, 1.0);
-    struct mat4x4 view4x4 = mat4x4_from_xform(view);
-    return mat4x4_mul(projection, view4x4);
-}
-
 /* ========================== *
  * Startup
  * ========================== */
@@ -520,6 +529,49 @@ struct gpu_startup_receipt gpu_startup(struct sys_window *window)
     return (struct gpu_startup_receipt) { 0 };
 }
 
+/* ========================== *
+ * Util
+ * ========================== */
+
+ /* Calculate the view projection matrix */
+INLINE struct mat4x4 calculate_vp(struct xform view, f32 viewport_width, f32 viewport_height)
+{
+    struct mat4x4 projection = mat4x4_from_ortho(0.0, viewport_width, viewport_height, 0.0, -1.0, 1.0);
+    struct mat4x4 view4x4 = mat4x4_from_xform(view);
+    return mat4x4_mul(projection, view4x4);
+}
+
+/* ========================== *
+ * Handle
+ * ========================== */
+
+INTERNAL void dx11_texture_release(struct dx11_texture *t);
+
+void gpu_release(struct gpu_handle handle)
+{
+    struct dx11_handle_header *header = (struct dx11_handle_header *)handle.v;
+    switch (header->kind) {
+        default: break;
+
+        case DX11_HANDLE_KIND_TEXTURE:
+        {
+            dx11_texture_release((struct dx11_texture *)header);
+        } break;
+
+        case DX11_HANDLE_KIND_CMD_STORE:
+        {
+            /* TODO */
+            ASSERT(false);
+        } break;
+
+        case DX11_HANDLE_KIND_DISPATCH_STATE:
+        {
+            /* TODO */
+            ASSERT(false);
+        } break;
+    }
+}
+
 /* ========================== *
  * Mesh shader structs
  * ========================== */
@@ -595,7 +647,7 @@ INTERNAL void init_shader_table(void)
     /* Mesh shader layout */
     G.shader_info[DX11_SHADER_KIND_MESH] = (struct dx11_shader_desc) {
         .kind = DX11_SHADER_KIND_MESH,
-        .name_cstr = "shaders/mesh.hlsl",
+        .name_cstr = "shaders_dx11/mesh.hlsl",
         .input_layout_desc = {
             { "pos",        0, DXGI_FORMAT_R32G32_FLOAT,   0, D3D11_APPEND_ALIGNED_ELEMENT, D3D11_INPUT_PER_VERTEX_DATA, 0 },
             { "color_srgb", 0, DXGI_FORMAT_R8G8B8A8_UNORM, 0, D3D11_APPEND_ALIGNED_ELEMENT, D3D11_INPUT_PER_VERTEX_DATA, 0 }
@@ -605,19 +657,19 @@ INTERNAL void init_shader_table(void)
     /* Texture shader layout */
     G.shader_info[DX11_SHADER_KIND_TEXTURE] = (struct dx11_shader_desc) {
         .kind = DX11_SHADER_KIND_TEXTURE,
-        .name_cstr = "shaders/texture.hlsl"
+        .name_cstr = "shaders_dx11/texture.hlsl"
     };
 
     /* Grid shader layout */
     G.shader_info[DX11_SHADER_KIND_GRID] = (struct dx11_shader_desc) {
         .kind = DX11_SHADER_KIND_GRID,
-        .name_cstr = "shaders/grid.hlsl"
+        .name_cstr = "shaders_dx11/grid.hlsl"
     };
 
     /* Test shader layout */
     G.shader_info[DX11_SHADER_KIND_TEST] = (struct dx11_shader_desc) {
         .kind = DX11_SHADER_KIND_TEST,
-        .name_cstr = "shaders/test.hlsl"
+        .name_cstr = "shaders_dx11/test.hlsl"
     };
 
 #if RESOURCE_RELOADING
@@ -988,6 +1040,7 @@ INTERNAL struct dx11_texture *dx11_texture_alloc(enum DXGI_FORMAT format, u32 fl
         sys_mutex_unlock(&lock);
     }
     MEMZERO_STRUCT(t);
+    t->header.kind = DX11_HANDLE_KIND_TEXTURE;
 
     D3D11_TEXTURE2D_DESC desc = ZI;
     desc.Width = max_i32(size.x, 1);
@@ -1051,10 +1104,10 @@ INTERNAL void dx11_texture_release(struct dx11_texture *t)
     }
 }
 
-struct gpu_texture gpu_texture_alloc(enum gpu_texture_format format, u32 flags, struct v2i32 size, void *initial_data)
+struct gpu_handle gpu_texture_alloc(enum gpu_texture_format format, u32 flags, struct v2i32 size, void *initial_data)
 {
     __prof;
-    struct gpu_texture res = ZI;
+    struct gpu_handle res = ZI;
 
     /* Convert format to dx11 format */
     enum DXGI_FORMAT dx11_format = dx11_format_from_gpu_format(format);
@@ -1071,20 +1124,14 @@ struct gpu_texture gpu_texture_alloc(enum gpu_texture_format format, u32 flags,
     }
 
     struct dx11_texture *t = dx11_texture_alloc(dx11_format, dx11_flags, size, initial_data);
-    res.handle = (u64)t;
+    res.v = (u64)t;
     return res;
 }
 
-void gpu_texture_release(struct gpu_texture t)
+void gpu_texture_clear(struct gpu_handle target_texture, u32 clear_color)
 {
     __prof;
-    dx11_texture_release((struct dx11_texture *)t.handle);
+    struct dx11_texture *t = (struct dx11_texture *)target_texture.v;
-}
-
-void gpu_texture_clear(struct gpu_texture target_texture, u32 clear_color)
-{
-    __prof;
-    struct dx11_texture *t = (struct dx11_texture *)target_texture.handle;
     if (t->rtv) {
         f32 r = (f32)((clear_color >> 0) & 0xFF) / 255.0f;
         f32 g = (f32)((clear_color >> 8) & 0xFF) / 255.0f;
@@ -1095,9 +1142,9 @@ void gpu_texture_clear(struct gpu_texture target_texture, u32 clear_color)
     }
 }
 
-struct v2i32 gpu_texture_get_size(struct gpu_texture texture)
+struct v2i32 gpu_texture_get_size(struct gpu_handle texture)
 {
-    return ((struct dx11_texture *)texture.handle)->size;
+    return ((struct dx11_texture *)texture.v)->size;
 }
 
 /* ========================== *
@@ -1228,7 +1275,7 @@ INTERNAL void dx11_buffer_submit(struct dx11_buffer *buffer)
  * Cmd store
  * ========================== */
 
-struct gpu_cmd_store gpu_cmd_store_alloc(void)
+struct gpu_handle gpu_cmd_store_alloc(void)
 {
     __prof;
     struct dx11_cmd_store *store = NULL;
@@ -1259,6 +1306,7 @@ struct gpu_cmd_store gpu_cmd_store_alloc(void)
         arena_reset(&store->cpu_cmds_arena);
         arena_reset(&store->gpu_cmds_arena);
     }
+    store->header.kind = DX11_HANDLE_KIND_CMD_STORE;
 
     /* Desc template */
     const D3D11_BUFFER_DESC structured_buffer_desc = {
@@ -1309,23 +1357,15 @@ struct gpu_cmd_store gpu_cmd_store_alloc(void)
         }
     }
 
-    struct gpu_cmd_store res = ZI;
+    struct gpu_handle res = ZI;
-    res.handle = (u64)store;
+    res.v = (u64)store;
     return res;
 }
 
-void gpu_cmd_store_release(struct gpu_cmd_store gpu_cmd_store)
+void gpu_push_cmd(struct gpu_handle gpu_cmd_store, struct gpu_cmd_params params)
 {
     __prof;
-    /* TODO */
+    struct dx11_cmd_store *store = (struct dx11_cmd_store *)gpu_cmd_store.v;
-    ASSERT(false);
-    (UNUSED)gpu_cmd_store;
-}
-
-void gpu_push_cmd(struct gpu_cmd_store gpu_cmd_store, struct gpu_cmd_params params)
-{
-    __prof;
-    struct dx11_cmd_store *store = (struct dx11_cmd_store *)gpu_cmd_store.handle;
 
     switch (params.kind) {
         default:
@@ -1396,7 +1436,7 @@ void gpu_push_cmd(struct gpu_cmd_store gpu_cmd_store, struct gpu_cmd_params para
             if (cmd &&
                 ((cmd->kind != params.kind) ||
                 (cmd->texture.sprite.hash != params.texture.sprite.hash) ||
-                (cmd->texture.texture.handle != params.texture.texture.handle))) {
+                (cmd->texture.texture.v != params.texture.texture.v))) {
                 /* Cannot batch */
                 cmd = NULL;
             }
@@ -1483,10 +1523,10 @@ void gpu_push_cmd(struct gpu_cmd_store gpu_cmd_store, struct gpu_cmd_params para
     }
 }
 
-void gpu_submit_cmds(struct gpu_cmd_store gpu_cmd_store)
+void gpu_submit_cmds(struct gpu_handle gpu_cmd_store)
 {
     __prof;
-    struct dx11_cmd_store *store = (struct dx11_cmd_store *)gpu_cmd_store.handle;
+    struct dx11_cmd_store *store = (struct dx11_cmd_store *)gpu_cmd_store.v;
 
     /* Swap cmd lists */
     struct arena swp_arena = store->gpu_cmds_arena;
@@ -1518,38 +1558,28 @@ void gpu_submit_cmds(struct gpu_cmd_store gpu_cmd_store)
  * Dispatch state
  * ========================== */
 
-struct gpu_dispatch_state gpu_dispatch_state_alloc(void)
+struct gpu_handle gpu_dispatch_state_alloc(void)
 {
     __prof;
     struct dx11_dispatch_state *state = NULL;
     {
-        {
+        struct sys_lock lock = sys_mutex_lock_e(&G.dispatch_states_mutex);
-            struct sys_lock lock = sys_mutex_lock_e(&G.dispatch_states_mutex);
+        if (G.first_free_dispatch_state) {
-            if (G.first_free_dispatch_state) {
+            state = G.first_free_dispatch_state;
-                state = G.first_free_dispatch_state;
+            G.first_free_dispatch_state = state->next_free;
-                G.first_free_dispatch_state = state->next_free;
+        } else {
-            } else {
+            state = arena_push_no_zero(&G.dispatch_states_arena, struct dx11_dispatch_state);
-                state = arena_push_no_zero(&G.dispatch_states_arena, struct dx11_dispatch_state);
-            }
-            sys_mutex_unlock(&lock);
         }
-        MEMZERO_STRUCT(state);
+        sys_mutex_unlock(&lock);
     }
+    MEMZERO_STRUCT(state);
+    state->header.kind = DX11_HANDLE_KIND_DISPATCH_STATE;
 
-
+    struct gpu_handle res = ZI;
-    struct gpu_dispatch_state res = ZI;
+    res.v = (u64)state;
-    res.handle = (u64)state;
     return res;
 }
 
-void gpu_dispatch_state_release(struct gpu_dispatch_state gpu_dispatch_state)
-{
-    /* TODO */
-    __prof;
-    ASSERT(false);
-    (UNUSED)gpu_dispatch_state;
-}
-
 /* ========================== *
  * Dispatch
  * ========================== */
@@ -1621,12 +1651,12 @@ INTERNAL void dx11_unbind(u32 flags)
 }
 
 /* TODO: Lock resources during dispatch */
-void gpu_dispatch(struct gpu_dispatch_state gpu_dispatch_state, struct gpu_dispatch_params params)
+void gpu_dispatch(struct gpu_handle gpu_dispatch_state, struct gpu_dispatch_params params)
 {
     __prof;
     __profscope_dx11(G.profiling_ctx, Dispatch, RGB_F(0.5, 0.2, 0.2));
     struct sprite_scope *sprite_scope = sprite_scope_begin();
-    struct dx11_dispatch_state *state = (struct dx11_dispatch_state *)gpu_dispatch_state.handle;
+    struct dx11_dispatch_state *state = (struct dx11_dispatch_state *)gpu_dispatch_state.v;
 
     struct rect viewport = params.draw_target_viewport;
 
@@ -1640,7 +1670,7 @@ void gpu_dispatch(struct gpu_dispatch_state gpu_dispatch_state, struct gpu_dispa
     d3d11_viewport.TopLeftY = viewport.y;
     ID3D11DeviceContext_RSSetViewports(G.devcon, 1, &d3d11_viewport);
 
-    struct dx11_texture *final_tex = (struct dx11_texture *)params.draw_target.handle;
+    struct dx11_texture *final_tex = (struct dx11_texture *)params.draw_target.v;
     struct v2i32 final_tex_size = final_tex->size;
 
     /* Allocate constant buffer */
@@ -1671,7 +1701,7 @@ void gpu_dispatch(struct gpu_dispatch_state gpu_dispatch_state, struct gpu_dispa
         __profscope(Regular pass);
         __profscope_dx11(G.profiling_ctx, Regular pass, RGB_F(0.2, 0.5, 0.5));
         for (u64 cmd_stores_array_index = 0; cmd_stores_array_index < params.cmds_array.count; ++cmd_stores_array_index) {
-            struct dx11_cmd_store *store = (struct dx11_cmd_store *)params.cmds_array.cmds[cmd_stores_array_index]->handle;
+            struct dx11_cmd_store *store = (struct dx11_cmd_store *)params.cmds_array.stores[cmd_stores_array_index]->v;
             for (struct dx11_cmd *cmd = store->gpu_first_cmd; cmd; cmd = cmd->next) {
                 enum gpu_cmd_kind cmd_kind = cmd->kind;
 
@@ -1741,14 +1771,14 @@ void gpu_dispatch(struct gpu_dispatch_state gpu_dispatch_state, struct gpu_dispa
                         struct dx11_shader *shader = &G.shaders[DX11_SHADER_KIND_TEXTURE];
                         if (shader->valid) {
                             struct dx11_texture *texture = NULL;
-                            if (cmd->texture.texture.handle) {
+                            if (cmd->texture.texture.v) {
                                 /* Load texture if handle is set */
-                                texture = (struct dx11_texture *)cmd->texture.texture.handle;
+                                texture = (struct dx11_texture *)cmd->texture.texture.v;
                             } else if (cmd->texture.sprite.hash) {
                                 /* Otherwise load sprite */
                                 struct sprite_texture *sprite_texture = sprite_texture_from_tag_async(sprite_scope, cmd->texture.sprite);
                                 if (sprite_texture->loaded) {
-                                    texture = (struct dx11_texture *)sprite_texture->texture.handle;
+                                    texture = (struct dx11_texture *)sprite_texture->texture.v;
                                 }
                             }
 
@@ -1938,9 +1968,9 @@ INTERNAL struct DXGI_QUERY_VIDEO_MEMORY_INFO get_memory_info(void)
 }
 #endif
 
-struct gpu_texture gpu_recreate_backbuffer(struct v2i32 size)
+struct gpu_handle gpu_recreate_backbuffer(struct v2i32 size)
 {
-    struct gpu_texture res = ZI;
+    struct gpu_handle res = ZI;
 
     /* Delay backbuffer recreation so that we don't recreate it too quickly.
      * It seems that doing this without a delay too often will cause windows
@@ -1973,7 +2003,7 @@ struct gpu_texture gpu_recreate_backbuffer(struct v2i32 size)
     rtv_desc.ViewDimension = D3D11_RTV_DIMENSION_TEXTURE2D;
     ID3D11Device_CreateRenderTargetView(G.dev, (ID3D11Resource *)G.backbuffer_texture.texture, &rtv_desc, &G.backbuffer_texture.rtv);
 
-    res.handle = (u64)&G.backbuffer_texture;
+    res.v = (u64)&G.backbuffer_texture;
     return res;
 }
 
@@ -2139,3 +2169,6 @@ INTERNAL void gpu_capture_image_for_profiler(void)
 }
 
 #endif
+
+
+#endif

src/gpu_dx12.c

@@ -0,0 +1,137 @@
+#if DX12_TEST
+
+#include "gpu.h"
+#include "sys.h"
+
+/* ========================== *
+ * Global state
+ * ========================== */
+
+GLOBAL struct {
+    i32 _;
+} G = ZI, DEBUG_ALIAS(G, G_gpu_dx12);
+
+/* ========================== *
+ * Startup
+ * ========================== */
+
+struct gpu_startup_receipt gpu_startup(struct sys_window *window)
+{
+    (UNUSED)window;
+    struct gpu_startup_receipt res = ZI;
+    return res;
+}
+
+/* ========================== *
+ * Handle
+ * ========================== */
+
+void gpu_release(struct gpu_handle handle)
+{
+    (UNUSED)handle;
+}
+
+/* ========================== *
+ * Texture
+ * ========================== */
+
+struct gpu_handle gpu_texture_alloc(enum gpu_texture_format format, u32 flags, struct v2i32 size, void *initial_data)
+{
+    (UNUSED)format;
+    (UNUSED)flags;
+    (UNUSED)size;
+    (UNUSED)initial_data;
+    struct gpu_handle res = ZI;
+    return res;
+}
+
+void gpu_texture_clear(struct gpu_handle target_texture, u32 clear_color)
+{
+    (UNUSED)target_texture;
+    (UNUSED)clear_color;
+}
+
+struct v2i32 gpu_texture_get_size(struct gpu_handle texture)
+{
+    (UNUSED)texture;
+    struct v2i32 res = ZI;
+    return res;
+}
+
+/* ========================== *
+ * Cmd buffer
+ * ========================== */
+
+struct gpu_handle gpu_cmd_store_alloc(void)
+{
+    struct gpu_handle res = ZI;
+    return res;
+}
+
+void gpu_push_cmd(struct gpu_handle gpu_cmd_store, struct gpu_cmd_params params)
+{
+    (UNUSED)gpu_cmd_store;
+    (UNUSED)params;
+}
+
+void gpu_submit_cmds(struct gpu_handle gpu_cmd_store)
+{
+    (UNUSED)gpu_cmd_store;
+}
+
+/* ========================== *
+ * Dispatch
+ * ========================== */
+
+struct gpu_handle gpu_dispatch_state_alloc(void)
+{
+    struct gpu_handle res = ZI;
+    return res;
+}
+
+void gpu_dispatch(struct gpu_handle gpu_dispatch_state, struct gpu_dispatch_params params)
+{
+    (UNUSED)gpu_dispatch_state;
+    (UNUSED)params;
+}
+
+/* ========================== *
+ * Backbuffer
+ * ========================== */
+
+struct gpu_handle gpu_recreate_backbuffer(struct v2i32 size)
+{
+    (UNUSED)size;
+    struct gpu_handle res = ZI;
+    return res;
+}
+
+void gpu_swap_backbuffer(i32 vsync)
+{
+    (UNUSED)vsync;
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+#endif

src/sprite.c

@@ -1344,7 +1344,7 @@ INTERNAL SYS_THREAD_ENTRY_POINT_FUNC_DEF(sprite_evictor_thread_entry_point, arg)
                     for (struct evict_node *en = first_evicted; en; en = en->next_evicted) {
                         struct cache_entry *n = en->cache_entry;
                         if (n->kind == CACHE_ENTRY_KIND_TEXTURE && n->texture->valid) {
-                            gpu_texture_release(n->texture->texture);
+                            gpu_release(n->texture->texture);
                         }
                         arena_release(&n->arena);
                     }

src/sprite.h

@@ -48,7 +48,7 @@ void sprite_scope_end(struct sprite_scope *scope);
 struct sprite_texture {
     b32 loaded;
     b32 valid;
-    struct gpu_texture texture;
+    struct gpu_handle texture;
     u32 width;
     u32 height;
 };

src/user.c

@@ -71,15 +71,15 @@ GLOBAL struct {
     struct second_stat net_bytes_sent;
 
     /* Gpu handles */
-    struct gpu_texture user_texture;
+    struct gpu_handle user_texture;
-    struct gpu_texture backbuffer_texture;
+    struct gpu_handle backbuffer_texture;
 
-    struct gpu_cmd_store world_gpu_cmd_store;
+    struct gpu_handle world_gpu_cmd_store;
-    struct gpu_cmd_store user_gpu_cmd_store;
+    struct gpu_handle user_gpu_cmd_store;
-    struct gpu_cmd_store backbuffer_gpu_cmd_store;
+    struct gpu_handle backbuffer_gpu_cmd_store;
 
-    struct gpu_dispatch_state user_dispatch_state;
+    struct gpu_handle user_dispatch_state;
-    struct gpu_dispatch_state backbuffer_dispatch_state;
+    struct gpu_handle backbuffer_dispatch_state;
 
     struct xform world_to_user_xf;
 
@@ -2085,15 +2085,15 @@ INTERNAL void user_update(void)
         {
 
             /* User texture */
-            if (!G.user_texture.handle || !v2i32_eq(gpu_texture_get_size(G.user_texture), user_resolution)) {
+            if (!G.user_texture.v || !v2i32_eq(gpu_texture_get_size(G.user_texture), user_resolution)) {
-                if (G.user_texture.handle) {
+                if (G.user_texture.v) {
-                    gpu_texture_release(G.user_texture);
+                    gpu_release(G.user_texture);
                 }
                 G.user_texture = gpu_texture_alloc(GPU_TEXTURE_FORMAT_R8G8B8A8_UNORM, GPU_TEXTURE_FLAG_TARGETABLE, user_resolution, NULL);
             }
 
             /* Backbuffer texture */
-            if (!G.backbuffer_texture.handle || !v2i32_eq(gpu_texture_get_size(G.backbuffer_texture), backbuffer_resolution)) {
+            if (!G.backbuffer_texture.v || !v2i32_eq(gpu_texture_get_size(G.backbuffer_texture), backbuffer_resolution)) {
                 G.backbuffer_texture = gpu_recreate_backbuffer(backbuffer_resolution);
             }
         }
@@ -2116,9 +2116,9 @@ INTERNAL void user_update(void)
 
         /* Render to user texture */
         {
-            struct gpu_cmd_store *dispatch_cmds[] = { &G.world_gpu_cmd_store, &G.user_gpu_cmd_store };
+            struct gpu_handle *dispatch_cmds[] = { &G.world_gpu_cmd_store, &G.user_gpu_cmd_store };
             struct gpu_dispatch_params params = ZI;
-            params.cmds_array.cmds = dispatch_cmds;
+            params.cmds_array.stores = dispatch_cmds;
             params.cmds_array.count = ARRAY_COUNT(dispatch_cmds);
             params.draw_target = G.user_texture;
             params.draw_target_viewport = user_viewport;
@@ -2127,9 +2127,9 @@ INTERNAL void user_update(void)
 
         /* Render to backbuffer texture */
         {
-            struct gpu_cmd_store *dispatch_cmds[] = { &G.backbuffer_gpu_cmd_store };
+            struct gpu_handle *dispatch_cmds[] = { &G.backbuffer_gpu_cmd_store };
             struct gpu_dispatch_params params = ZI;
-            params.cmds_array.cmds = dispatch_cmds;
+            params.cmds_array.stores = dispatch_cmds;
             params.cmds_array.count = ARRAY_COUNT(dispatch_cmds);
             params.draw_target = G.backbuffer_texture;
             params.draw_target_viewport = backbuffer_viewport;