convert icon_draw_texture to gawain imm mode replacements

source/blender/editors/interface/interface_icons.c

@@ -35,6 +35,7 @@
 
 #include "GPU_extensions.h"
 #include "GPU_basic_shader.h"
+#include "GPU_immediate.h"
 
 #include "BLI_blenlib.h"
 #include "BLI_utildefines.h"
@@ -1016,33 +1017,40 @@ static void icon_draw_texture(
 {
 	float x1, x2, y1, y2;
 
-	if (rgb) glColor4f(rgb[0], rgb[1], rgb[2], alpha);
-	else     glColor4f(alpha, alpha, alpha, alpha);
-
 	x1 = ix * icongltex.invw;
 	x2 = (ix + ih) * icongltex.invw;
 	y1 = iy * icongltex.invh;
 	y2 = (iy + ih) * icongltex.invh;
 
-	GPU_basic_shader_bind(GPU_SHADER_TEXTURE_2D | GPU_SHADER_USE_COLOR);
-	glBindTexture(GL_TEXTURE_2D, icongltex.id);
-
 	/* sharper downscaling, has no effect when scale matches with a mip level */
 	glTexEnvf(GL_TEXTURE_FILTER_CONTROL, GL_TEXTURE_LOD_BIAS, -0.5f);
 
-	glBegin(GL_QUADS);
-	glTexCoord2f(x1, y1);
-	glVertex2f(x, y);
+	glBindTexture(GL_TEXTURE_2D, icongltex.id);
+	VertexFormat* format = immVertexFormat();
+	unsigned pos = add_attrib(format, "pos", GL_FLOAT, 2, KEEP_FLOAT);
+	unsigned texCoord = add_attrib(format, "texCoord", GL_FLOAT, 2, KEEP_FLOAT);
 
-	glTexCoord2f(x2, y1);
-	glVertex2f(x + w, y);
+	immBindBuiltinProgram(GPU_SHADER_2D_IMAGE_COLOR);
+	if (rgb) immUniform4f("color", rgb[0], rgb[1], rgb[2], alpha);
+	else     immUniform4f("color", alpha, alpha, alpha, alpha);
 
-	glTexCoord2f(x2, y2);
-	glVertex2f(x + w, y + h);
+	immUniform1i("image", 0);
 
-	glTexCoord2f(x1, y2);
-	glVertex2f(x, y + h);
-	glEnd();
+	immBegin(GL_TRIANGLE_STRIP, 4);
+	immAttrib2f(texCoord, x1, y2);
+	immVertex2f(pos, x, y + h);
+
+	immAttrib2f(texCoord, x1, y1);
+	immVertex2f(pos, x, y);
+
+	immAttrib2f(texCoord, x2, y2);
+	immVertex2f(pos, x + w, y + h);
+
+	immAttrib2f(texCoord, x2, y1);
+	immVertex2f(pos, x + w, y);
+	immEnd();
+
+	immUnbindProgram();
 
 	glTexEnvf(GL_TEXTURE_FILTER_CONTROL, GL_TEXTURE_LOD_BIAS, 0.0f);
 

source/blender/gpu/CMakeLists.txt

@@ -134,8 +134,10 @@ data_to_c_simple(shaders/gpu_shader_2D_vert.glsl SRC)
 data_to_c_simple(shaders/gpu_shader_2D_flat_color_vert.glsl SRC)
 data_to_c_simple(shaders/gpu_shader_2D_smooth_color_vert.glsl SRC)
 data_to_c_simple(shaders/gpu_shader_2D_smooth_color_frag.glsl SRC)
+data_to_c_simple(shaders/gpu_shader_2D_image_vert.glsl SRC)
 data_to_c_simple(shaders/gpu_shader_image_mask_uniform_color_frag.glsl SRC)
 data_to_c_simple(shaders/gpu_shader_image_modulate_alpha_frag.glsl SRC)
+data_to_c_simple(shaders/gpu_shader_image_color_frag.glsl SRC)
 data_to_c_simple(shaders/gpu_shader_image_rect_modulate_alpha_frag.glsl SRC)
 data_to_c_simple(shaders/gpu_shader_image_depth_linear_frag.glsl SRC)
 data_to_c_simple(shaders/gpu_shader_3D_image_vert.glsl SRC)

source/blender/gpu/GPU_shader.h

@@ -101,6 +101,7 @@ typedef enum GPUBuiltinShader {
 	GPU_SHADER_2D_UNIFORM_COLOR,
 	GPU_SHADER_2D_FLAT_COLOR,
 	GPU_SHADER_2D_SMOOTH_COLOR,
+	GPU_SHADER_2D_IMAGE_COLOR,
 	/* for simple 3D drawing */
 	GPU_SHADER_3D_UNIFORM_COLOR,
 	GPU_SHADER_3D_FLAT_COLOR,

source/blender/gpu/intern/gpu_shader.c

@@ -54,7 +54,10 @@ extern char datatoc_gpu_shader_2D_vert_glsl[];
 extern char datatoc_gpu_shader_2D_flat_color_vert_glsl[];
 extern char datatoc_gpu_shader_2D_smooth_color_vert_glsl[];
 extern char datatoc_gpu_shader_2D_smooth_color_frag_glsl[];
+extern char datatoc_gpu_shader_2D_image_vert_glsl[];
+
 extern char datatoc_gpu_shader_3D_image_vert_glsl[];
+extern char datatoc_gpu_shader_image_color_frag_glsl[];
 extern char datatoc_gpu_shader_image_mask_uniform_color_frag_glsl[];
 extern char datatoc_gpu_shader_image_modulate_alpha_frag_glsl[];
 extern char datatoc_gpu_shader_image_rect_modulate_alpha_frag_glsl[];
@@ -635,6 +638,8 @@ GPUShader *GPU_shader_get_builtin_shader(GPUBuiltinShader shader)
 		                               datatoc_gpu_shader_flat_color_frag_glsl },
 		[GPU_SHADER_2D_SMOOTH_COLOR] = { datatoc_gpu_shader_2D_smooth_color_vert_glsl,
 		                                 datatoc_gpu_shader_2D_smooth_color_frag_glsl },
+		[GPU_SHADER_2D_IMAGE_COLOR] = { datatoc_gpu_shader_2D_image_vert_glsl,
+		                                datatoc_gpu_shader_image_color_frag_glsl },
 		[GPU_SHADER_3D_UNIFORM_COLOR] = { datatoc_gpu_shader_3D_vert_glsl, datatoc_gpu_shader_uniform_color_frag_glsl },
 		[GPU_SHADER_3D_FLAT_COLOR] = { datatoc_gpu_shader_3D_flat_color_vert_glsl,
 		                               datatoc_gpu_shader_flat_color_frag_glsl },

source/blender/gpu/shaders/gpu_shader_2D_image_vert.glsl

@@ -0,0 +1,18 @@
+
+uniform mat4 ModelViewProjectionMatrix;
+
+#if __VERSION__ == 120
+  attribute vec2 texCoord;
+  attribute vec2 pos;
+  varying vec2 texCoord_interp;
+#else
+  in vec2 texCoord;
+  in vec2 pos;
+  out vec2 texCoord_interp;
+#endif
+
+void main()
+{
+    gl_Position = ModelViewProjectionMatrix * vec4(pos.xy, 0.0f, 1.0f);
+    texCoord_interp = texCoord;
+}

source/blender/gpu/shaders/gpu_shader_image_color_frag.glsl

@@ -0,0 +1,17 @@
+
+#if __VERSION__ == 120
+  varying vec2 texCoord_interp;
+  #define fragColor gl_FragColor
+#else
+  in vec2 texCoord_interp;
+  out vec4 fragColor;
+  #define texture2D texture
+#endif
+
+uniform vec4 color;
+uniform sampler2D image;
+
+void main()
+{
+	fragColor = texture2D(image, texCoord_interp) * color;
+}