From caa8658f763d02a22bb162032e0ff1d59e5884dd Mon Sep 17 00:00:00 2001
From: "Sergey Semyonov (Serge)" <ion2@mail.ru>
Date: Sun, 13 Mar 2016 06:12:11 +0000
Subject: [PATCH] pixlib: i915 fragment shader

git-svn-id: svn://kolibrios.org@6334 a494cfbc-eb01-0410-851d-a64ba20cac60
---
 contrib/sdk/sources/pixlib-3/pxgl.c | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/contrib/sdk/sources/pixlib-3/pxgl.c b/contrib/sdk/sources/pixlib-3/pxgl.c
index 813d877da..cb14dff2d 100644
--- a/contrib/sdk/sources/pixlib-3/pxgl.c
+++ b/contrib/sdk/sources/pixlib-3/pxgl.c
@@ -362,7 +362,7 @@ static GLuint create_rgba_shader(struct shader *shader)
         "   tex_coord   = v_texcoord0.xy;\n"
         "}\n";
 
-    const char *fs_rgba =
+    const char *fs_i965 =
         "uniform sampler2D tex_rgba;\n"
         "uniform sampler2D tex_mask;\n"
         "varying vec2 tex_coord;\n"
@@ -372,8 +372,20 @@ static GLuint create_rgba_shader(struct shader *shader)
         "   gl_FragColor = vec4(texture2D(tex_rgba, tex_coord).rgb, ca);\n"
         "}\n";
 
+    const char *fs_i915 =
+        "uniform sampler2D tex_rgba;\n"
+        "uniform sampler2D tex_mask;\n"
+        "varying vec2 tex_coord;\n"
+        "void main()\n"
+        "{\n"
+        "   float ca = texture2D(tex_mask, tex_coord).a;\n"
+        "   gl_FragColor = vec4(texture2D(tex_rgba, tex_coord).rgb, ca);\n"
+        "}\n";
+
     GLuint prog;
     GLint  vs_shader, fs_shader;
+    const char *fs_src;
+    char *drv_name;
     int ret;
 
     prog = glCreateProgram();
@@ -384,7 +396,16 @@ static GLuint create_rgba_shader(struct shader *shader)
     if(vs_shader == 0)
         goto err;
 
-    fs_shader = create_shader(GL_FRAGMENT_SHADER, fs_rgba);
+    drv_name = (char*)glGetString(0x1F04);
+    printf("Render: %s\n", drv_name);
+
+    if(strstr(drv_name, "i965"))
+        fs_src = fs_i965;
+    else if(strstr(drv_name, "i915"))
+        fs_src = fs_i915;
+    else fs_src = NULL;
+
+    fs_shader = create_shader(GL_FRAGMENT_SHADER, fs_src);
     if(fs_shader == 0)
         goto err;