Builds on knulli

src/duskgl/display/shader/shaderunlitgl.c

@@ -9,6 +9,45 @@
 
 #ifdef DUSK_OPENGL_LEGACY
   shaderdefinition_t SHADER_UNLIT_DEFINITION = { 0 };
+#elifdef DUSK_OPENGL_ES
+  shaderdefinition_t SHADER_UNLIT_DEFINITION = {
+    .vert =
+      "#version 300 es\n"
+      "layout(location = 0) in vec3 a_Pos;\n"
+      "layout(location = 1) in vec2 a_TexCoord;\n"
+      "layout(location = 2) in vec4 a_Color;\n"
+      "uniform mat4 u_Proj;\n"
+      "uniform mat4 u_View;\n"
+      "uniform mat4 u_Model;\n"
+      "out vec4 v_Color;\n"
+      "out vec2 v_TexCoord;\n"
+      "void main() {\n"
+      "  gl_Position = u_Proj * u_View * u_Model * vec4(a_Pos, 1.0);\n"
+      "  v_Color = a_Color;\n"
+      "  v_TexCoord = a_TexCoord;\n"
+      "}\n",
+
+    .frag =
+      "#version 300 es\n"
+      "precision mediump float;\n"
+      "uniform sampler2D u_Texture;\n"
+      "uniform uint u_Colors[256];\n"
+      "uniform int u_ColorCount;\n"
+      "in vec4 v_Color;\n"
+      "in vec2 v_TexCoord;\n"
+      "out vec4 FragColor;\n"
+      "void main() {\n"
+      "  vec4 texColor = texture(u_Texture, v_TexCoord);\n"
+      "  uint index = uint(floor(texColor.r * 255.0));\n"
+      "  uint palColor = u_Colors[index];\n"
+      "  float r = float((palColor >> 24) & 0xFFu) / 255.0;\n"
+      "  float g = float((palColor >> 16) & 0xFFu) / 255.0;\n"
+      "  float b = float((palColor >> 8)  & 0xFFu) / 255.0;\n"
+      "  float a = float((palColor >> 0)  & 0xFFu) / 255.0;\n"
+      "  vec4 paletteColor = vec4(r, g, b, a);\n"
+      "  FragColor = paletteColor;\n"
+      "}\n"
+  };
 #else
   shaderdefinition_t SHADER_UNLIT_DEFINITION = {
     .vert =

src/duskgl/duskgl.h

@@ -6,6 +6,20 @@
  */
 
 #pragma once
-#define GL_GLEXT_PROTOTYPES
-#include <GL/gl.h>
-#include <GL/glext.h>
+#ifdef DUSK_OPENGL_ES
+  #include <GLES3/gl3.h>
+  #define GL_COLOR_INDEX8_EXT 0x80E5
+  #define GL_FRAMEBUFFER_EXT GL_FRAMEBUFFER
+  #define GL_FRAMEBUFFER_COMPLETE_EXT GL_FRAMEBUFFER_COMPLETE
+  #define glCheckFramebufferStatusEXT glCheckFramebufferStatus
+  #define glDeleteFramebuffersEXT glDeleteFramebuffers
+  #define glGenFramebuffersEXT glGenFramebuffers
+  #define glBindFramebufferEXT glBindFramebuffer
+  #define glFramebufferTexture2DEXT glFramebufferTexture2D
+  #define GL_COLOR_ATTACHMENT0_EXT GL_COLOR_ATTACHMENT0
+  #define glClearDepth(depth) glClearDepthf(depth)
+#else
+  #define GL_GLEXT_PROTOTYPES
+  #include <GL/gl.h>
+  #include <GL/glext.h>
+#endif

src/dusklinux/log/log.c

@@ -19,4 +19,5 @@ void logError(const char_t *message, ...) {
   va_start(args, message);
   vprintf(message, args);
   va_end(args);
+  fflush(stdout);
 }