[client] egl: make the bgr_bgra filter generic for 24-bit formats

client/renderers/EGL/CMakeLists.txt

@@ -56,7 +56,7 @@ build_shaders(
   shader/damage.vert
   shader/damage.frag
   shader/basic.vert
-  shader/convert_bgr_bgra.frag
+  shader/convert_24bit.frag
   shader/ffx_cas.frag
   shader/ffx_fsr1_easu.frag
   shader/ffx_fsr1_rcas.frag
@@ -88,7 +88,7 @@ add_library(renderer_EGL STATIC
   postprocess.c
   ffx.c
   filter.c
-  filter_bgr_bgra.c
+  filter_24bit.c
   filter_ffx_cas.c
   filter_ffx_fsr1.c
   filter_downscale.c

client/renderers/EGL/cursor.c

@@ -100,7 +100,7 @@ static bool cursorTexInit(struct CursorTex * t,
   }
 
   if (!egl_shaderCompile(t->shader,
-        vertex_code, vertex_size, fragment_code, fragment_size, false))
+        vertex_code, vertex_size, fragment_code, fragment_size, false, NULL))
   {
     DEBUG_ERROR("Failed to compile the cursor shader");
     return false;

client/renderers/EGL/damage.c

@@ -77,7 +77,7 @@ bool egl_damageInit(EGL_Damage ** damage)
   if (!egl_shaderCompile((*damage)->shader,
         b_shader_damage_vert, b_shader_damage_vert_size,
         b_shader_damage_frag, b_shader_damage_frag_size,
-        false))
+        false, NULL))
   {
     DEBUG_ERROR("Failed to compile the damage shader");
     return false;

client/renderers/EGL/desktop.c

@@ -114,7 +114,7 @@ static bool egl_initDesktopShader(
   if (!egl_shaderCompile(shader->shader,
         vertex_code  , vertex_size,
         fragment_code, fragment_size,
-        useDMA))
+        useDMA, NULL))
   {
     return false;
   }
@@ -207,7 +207,7 @@ bool egl_desktopInit(EGL * egl, EGL_Desktop ** desktop_, EGLDisplay * display,
   }
 
   // this MUST be first
-  egl_postProcessAdd(desktop->pp, &egl_filterBGRtoBGRAOps);
+  egl_postProcessAdd(desktop->pp, &egl_filter24bitOps);
 
   egl_postProcessAdd(desktop->pp, &egl_filterDownscaleOps);
   egl_postProcessAdd(desktop->pp, &egl_filterFFXCASOps   );

client/renderers/EGL/filter_24bit.c

@@ -29,14 +29,15 @@
 #include "cimgui.h"
 
 #include "basic.vert.h"
-#include "convert_bgr_bgra.frag.h"
+#include "convert_24bit.frag.h"
 
 
-typedef struct EGL_FilterBGRtoBGRA
+typedef struct EGL_Filter24bit
 {
   EGL_Filter base;
 
   bool enable;
+  EGL_PixelFormat format;
   int  useDMA;
   unsigned int width, height;
   unsigned int desktopWidth, desktopHeight;
@@ -48,11 +49,11 @@ typedef struct EGL_FilterBGRtoBGRA
   EGL_Framebuffer * fb;
   GLuint            sampler[2];
 }
-EGL_FilterBGRtoBGRA;
+EGL_Filter24bit;
 
-static bool egl_filterBGRtoBGRAInit(EGL_Filter ** filter)
+static bool egl_filter24bitInit(EGL_Filter ** filter)
 {
-  EGL_FilterBGRtoBGRA * this = calloc(1, sizeof(*this));
+  EGL_Filter24bit * this = calloc(1, sizeof(*this));
   if (!this)
   {
     DEBUG_ERROR("Failed to allocate ram");
@@ -94,9 +95,9 @@ error_this:
   return false;
 }
 
-static void egl_filterBGRtoBGRAFree(EGL_Filter * filter)
+static void egl_filter24bitFree(EGL_Filter * filter)
 {
-  EGL_FilterBGRtoBGRA * this = UPCAST(EGL_FilterBGRtoBGRA, filter);
+  EGL_Filter24bit * this = UPCAST(EGL_Filter24bit, filter);
 
   egl_shaderFree(&this->shader);
   egl_framebufferFree(&this->fb);
@@ -104,22 +105,28 @@ static void egl_filterBGRtoBGRAFree(EGL_Filter * filter)
   free(this);
 }
 
-static bool egl_filterBGRtoBGRASetup(EGL_Filter * filter,
+static bool egl_filter24bitSetup(EGL_Filter * filter,
     enum EGL_PixelFormat pixFmt, unsigned int width, unsigned int height,
     unsigned int desktopWidth, unsigned int desktopHeight,
     bool useDMA)
 {
-  EGL_FilterBGRtoBGRA * this = UPCAST(EGL_FilterBGRtoBGRA, filter);
+  EGL_Filter24bit * this = UPCAST(EGL_Filter24bit, filter);
 
   if (pixFmt != EGL_PF_BGR_32 && pixFmt != EGL_PF_RGB_24)
     return false;
 
-  if (this->useDMA != useDMA)
+  if (this->useDMA != useDMA || this->format != pixFmt)
   {
+    EGL_ShaderDefine defines[] =
+    {
+      {"OUTPUT", pixFmt == EGL_PF_BGR_32 ? "fragColor.bgra" : "fragColor.rgba" },
+      {0}
+    };
+
     if (!egl_shaderCompile(this->shader,
-          b_shader_basic_vert           , b_shader_basic_vert_size,
+          b_shader_basic_vert        , b_shader_basic_vert_size,
-          b_shader_convert_bgr_bgra_frag, b_shader_convert_bgr_bgra_frag_size,
+          b_shader_convert_24bit_frag, b_shader_convert_24bit_frag_size,
-          useDMA)
+          useDMA, defines)
        )
     {
       DEBUG_ERROR("Failed to compile the shader");
@@ -144,6 +151,7 @@ static bool egl_filterBGRtoBGRASetup(EGL_Filter * filter,
   if (!egl_framebufferSetup(this->fb, pixFmt, desktopWidth, desktopHeight))
     return false;
 
+  this->format        = pixFmt;
   this->width         = width;
   this->height        = height;
   this->desktopWidth  = desktopWidth;
@@ -153,17 +161,17 @@ static bool egl_filterBGRtoBGRASetup(EGL_Filter * filter,
   return true;
 }
 
-static void egl_filterBGRtoBGRAGetOutputRes(EGL_Filter * filter,
+static void egl_filter24bitGetOutputRes(EGL_Filter * filter,
     unsigned int *width, unsigned int *height)
 {
-  EGL_FilterBGRtoBGRA * this = UPCAST(EGL_FilterBGRtoBGRA, filter);
+  EGL_Filter24bit * this = UPCAST(EGL_Filter24bit, filter);
   *width  = this->desktopWidth;
   *height = this->desktopHeight;
 }
 
-static bool egl_filterBGRtoBGRAPrepare(EGL_Filter * filter)
+static bool egl_filter24bitPrepare(EGL_Filter * filter)
 {
-  EGL_FilterBGRtoBGRA * this = UPCAST(EGL_FilterBGRtoBGRA, filter);
+  EGL_Filter24bit * this = UPCAST(EGL_Filter24bit, filter);
 
   if (this->prepared)
     return true;
@@ -176,10 +184,10 @@ static bool egl_filterBGRtoBGRAPrepare(EGL_Filter * filter)
   return true;
 }
 
-static EGL_Texture * egl_filterBGRtoBGRARun(EGL_Filter * filter,
+static EGL_Texture * egl_filter24bitRun(EGL_Filter * filter,
     EGL_FilterRects * rects, EGL_Texture * texture)
 {
-  EGL_FilterBGRtoBGRA * this = UPCAST(EGL_FilterBGRtoBGRA, filter);
+  EGL_Filter24bit * this = UPCAST(EGL_Filter24bit, filter);
 
   egl_framebufferBind(this->fb);
 
@@ -194,19 +202,19 @@ static EGL_Texture * egl_filterBGRtoBGRARun(EGL_Filter * filter,
   return egl_framebufferGetTexture(this->fb);
 }
 
-EGL_FilterOps egl_filterBGRtoBGRAOps =
+EGL_FilterOps egl_filter24bitOps =
 {
-  .id           = "bgrtobgra",
+  .id           = "24bit",
-  .name         = "BGRtoBGRA",
+  .name         = "24bit",
   .type         = EGL_FILTER_TYPE_INTERNAL,
   .earlyInit    = NULL,
-  .init         = egl_filterBGRtoBGRAInit,
+  .init         = egl_filter24bitInit,
-  .free         = egl_filterBGRtoBGRAFree,
+  .free         = egl_filter24bitFree,
   .imguiConfig  = NULL,
   .saveState    = NULL,
   .loadState    = NULL,
-  .setup        = egl_filterBGRtoBGRASetup,
+  .setup        = egl_filter24bitSetup,
-  .getOutputRes = egl_filterBGRtoBGRAGetOutputRes,
+  .getOutputRes = egl_filter24bitGetOutputRes,
-  .prepare      = egl_filterBGRtoBGRAPrepare,
+  .prepare      = egl_filter24bitPrepare,
-  .run          = egl_filterBGRtoBGRARun
+  .run          = egl_filter24bitRun
 };

client/renderers/EGL/filter_downscale.c

@@ -316,7 +316,7 @@ static bool egl_filterDownscaleSetup(EGL_Filter * filter,
           b_shader_basic_vert    , b_shader_basic_vert_size,
           b_shader_downscale_frag,
           b_shader_downscale_frag_size,
-          useDMA)
+          useDMA, NULL)
        )
     {
       DEBUG_ERROR("Failed to compile the shader");
@@ -327,7 +327,7 @@ static bool egl_filterDownscaleSetup(EGL_Filter * filter,
           b_shader_basic_vert, b_shader_basic_vert_size,
           b_shader_downscale_linear_frag,
           b_shader_downscale_linear_frag_size,
-          useDMA)
+          useDMA, NULL)
        )
     {
       DEBUG_ERROR("Failed to compile the shader");
@@ -338,7 +338,7 @@ static bool egl_filterDownscaleSetup(EGL_Filter * filter,
           b_shader_basic_vert, b_shader_basic_vert_size,
           b_shader_downscale_lanczos2_frag,
           b_shader_downscale_lanczos2_frag_size,
-          useDMA)
+          useDMA, NULL)
        )
     {
       DEBUG_ERROR("Failed to compile the shader");

client/renderers/EGL/filter_ffx_cas.c

@@ -222,7 +222,7 @@ static bool egl_filterFFXCASSetup(EGL_Filter * filter,
     if (!egl_shaderCompile(this->shader,
           b_shader_basic_vert  , b_shader_basic_vert_size,
           b_shader_ffx_cas_frag, b_shader_ffx_cas_frag_size,
-          useDMA)
+          useDMA, NULL)
        )
     {
       DEBUG_ERROR("Failed to compile the shader");

client/renderers/EGL/filter_ffx_fsr1.c

@@ -127,7 +127,7 @@ static bool egl_filterFFXFSR1Init(EGL_Filter ** filter)
   if (!egl_shaderCompile(this->rcas,
         b_shader_basic_vert        , b_shader_basic_vert_size,
         b_shader_ffx_fsr1_rcas_frag, b_shader_ffx_fsr1_rcas_frag_size,
-        false)
+        false, NULL)
      )
   {
     DEBUG_ERROR("Failed to compile the Rcas shader");
@@ -336,7 +336,7 @@ static bool egl_filterFFXFSR1Setup(EGL_Filter * filter,
     if (!egl_shaderCompile(this->easu,
           b_shader_basic_vert        , b_shader_basic_vert_size,
           b_shader_ffx_fsr1_easu_frag, b_shader_ffx_fsr1_easu_frag_size,
-          useDMA)
+          useDMA, NULL)
        )
     {
       DEBUG_ERROR("Failed to compile the Easu shader");

client/renderers/EGL/filters.h

@@ -20,7 +20,7 @@
 
 #pragma once
 
-extern EGL_FilterOps egl_filterBGRtoBGRAOps;
+extern EGL_FilterOps egl_filter24bitOps;
 extern EGL_FilterOps egl_filterDownscaleOps;
 extern EGL_FilterOps egl_filterFFXCASOps;
 extern EGL_FilterOps egl_filterFFXFSR1Ops;

client/renderers/EGL/shader.c

@@ -65,7 +65,8 @@ void egl_shaderFree(EGL_Shader ** shader)
 }
 
 bool egl_shaderLoad(EGL_Shader * this,
-    const char * vertex_file, const char * fragment_file, bool useDMA)
+    const char * vertex_file, const char * fragment_file, bool useDMA,
+    const EGL_ShaderDefine * defines)
 {
   char   * vertex_code, * fragment_code;
   size_t   vertex_size,   fragment_size;
@@ -89,7 +90,7 @@ bool egl_shaderLoad(EGL_Shader * this,
 
   bool ret = egl_shaderCompile(this,
       vertex_code, vertex_size, fragment_code, fragment_size,
-      useDMA);
+      useDMA, defines);
 
   free(vertex_code);
   free(fragment_code);
@@ -210,8 +211,12 @@ static bool shaderCompile(EGL_Shader * this, const char * vertex_code,
 
 bool egl_shaderCompile(EGL_Shader * this, const char * vertex_code,
     size_t vertex_size, const char * fragment_code, size_t fragment_size,
-    bool useDMA)
+    bool useDMA, const EGL_ShaderDefine * defines)
 {
+  bool result      = false;
+  char * processed = NULL;
+  char * newCode   = NULL;
+
   if (useDMA)
   {
     const char * search  = "sampler2D";
@@ -225,12 +230,13 @@ bool egl_shaderCompile(EGL_Shader * this, const char * vertex_code,
       src += strlen(search);
     }
 
-    const int diff = (strlen(replace) - strlen(search)) * instances;
+    const int diff   = (strlen(replace) - strlen(search)) * instances;
-    char * newCode = malloc(fragment_size + diff + 1);
+    const int newLen = fragment_size + diff;
+    newCode = malloc(newLen + 1);
     if (!newCode)
     {
       DEBUG_ERROR("Out of memory");
-      return false;
+      goto exit;
     }
 
     src        = fragment_code;
@@ -250,20 +256,94 @@ bool egl_shaderCompile(EGL_Shader * this, const char * vertex_code,
 
     const int final = fragment_size - (src - fragment_code);
     memcpy(dst, src, final);
-    dst[final] = 0;
+    dst[final] = '\0';
 
-    bool result = shaderCompile(
+    fragment_code = newCode;
-        this,
+    fragment_size = newLen;
-        vertex_code, vertex_size,
-        newCode    , fragment_size + diff);
-
-    free(newCode);
-    return result;
   }
 
-  return shaderCompile(this,
+  if (defines)
+  {
+    // find the end of any existing lines starting with #
+    bool newLine   = true;
+    bool skip      = false;
+    int  insertPos = 0;
+    for(int i = 0; i < fragment_size; ++i)
+    {
+      if (skip)
+      {
+        if (fragment_code[i] == '\n')
+          skip = false;
+        continue;
+      }
+
+      switch(fragment_code[i])
+      {
+        case '\n':
+          newLine = true;
+          continue;
+
+        case ' ':
+        case '\t':
+        case '\r':
+          continue;
+
+        case '#':
+          if (newLine)
+          {
+            skip = true;
+            continue;
+          }
+          //fallthrough
+
+        default:
+          newLine = false;
+          break;
+      }
+
+      if (!newLine)
+      {
+        insertPos = i - 1;
+        break;
+      }
+    }
+
+    int processedLen = fragment_size;
+    const char * defineFormat = "#define %s %s\n";
+    for(const EGL_ShaderDefine * define = defines; define->name; ++define)
+      processedLen += snprintf(NULL, 0, defineFormat, define->name, define->value);
+
+    processed = malloc(processedLen);
+    if (!processed)
+    {
+      DEBUG_ERROR("Out of memory");
+      goto exit;
+    }
+
+    memcpy(processed, fragment_code, insertPos);
+
+    int offset = insertPos;
+    for(const EGL_ShaderDefine * define = defines; define->name; ++define)
+      offset += sprintf(processed + offset, defineFormat,
+          define->name, define->value);
+
+    memcpy(
+        processed       + offset,
+        fragment_code + insertPos,
+        fragment_size - insertPos);
+
+    fragment_code = processed;
+    fragment_size = processedLen;
+  }
+
+  result = shaderCompile(this,
       vertex_code  , vertex_size,
       fragment_code, fragment_size);
+
+exit:
+  free(processed);
+  free(newCode);
+  return result;
 }
 
 void egl_shaderSetUniforms(EGL_Shader * this, EGL_Uniform * uniforms, int count)

client/renderers/EGL/shader.h

@@ -93,15 +93,22 @@ typedef struct EGL_Uniform
 }
 EGL_Uniform;
 
+typedef struct EGL_ShaderDefine
+{
+  const char * name;
+  const char * value;
+}
+EGL_ShaderDefine;
+
 bool egl_shaderInit(EGL_Shader ** shader);
 void egl_shaderFree(EGL_Shader ** shader);
 
 bool egl_shaderLoad(EGL_Shader * model, const char * vertex_file,
-    const char * fragment_file, bool useDMA);
+    const char * fragment_file, bool useDMA, const EGL_ShaderDefine * defines);
 
 bool egl_shaderCompile(EGL_Shader * model, const char * vertex_code,
     size_t vertex_size, const char * fragment_code, size_t fragment_size,
-    bool useDMA);
+    bool useDMA, const EGL_ShaderDefine * defines);
 
 void egl_shaderSetUniforms(EGL_Shader * shader, EGL_Uniform * uniforms,
     int count);

client/renderers/EGL/shader/convert_24bit.frag

@@ -23,7 +23,7 @@ void main()
   uint trd = (outputPos.x * 3u + 2u) / 4u;
   vec4 color_2 = texelFetch(sampler1, ivec2(trd, outputPos.y), 0);
 
-  fragColor.bgra = vec4(
+  OUTPUT = vec4(
     color_0.barg[outputPos.x % 4u],
     color_1.gbar[outputPos.x % 4u],
     color_2.rgba[outputPos.x % 4u],