#include "main/depth.h"
#include "main/enable.h"
#include "main/fbobject.h"
+#include "main/feedback.h"
#include "main/formats.h"
#include "main/image.h"
#include "main/macros.h"
#include "main/teximage.h"
#include "main/texparam.h"
#include "main/texstate.h"
+#include "main/transformfeedback.h"
#include "main/uniforms.h"
#include "main/varray.h"
#include "main/viewport.h"
struct gl_query_object *CondRenderQuery;
GLenum CondRenderMode;
+ /** MESA_META_SELECT_FEEDBACK */
+ GLenum RenderMode;
+ struct gl_selection Select;
+ struct gl_feedback Feedback;
+
/** Miscellaneous (always disabled) */
GLboolean Lighting;
+ GLboolean RasterDiscard;
+ GLboolean TransformFeedbackNeedsResume;
};
-
/**
* Temporary texture used for glBlitFramebuffer, glDrawPixels, etc.
* This is currently shared by all the meta ops. But we could create a
GLuint VBO;
GLuint ShaderProg;
GLint ColorLocation;
+
+ GLuint IntegerShaderProg;
+ GLint IntegerColorLocation;
};
GLint Width, Height;
};
+/**
+ * State for glDrawTex()
+ */
+struct drawtex_state
+{
+ GLuint ArrayObj;
+ GLuint VBO;
+};
-#define MAX_META_OPS_DEPTH 2
+#define MAX_META_OPS_DEPTH 8
/**
* All per-context meta state.
*/
struct bitmap_state Bitmap; /**< For _mesa_meta_Bitmap() */
struct gen_mipmap_state Mipmap; /**< For _mesa_meta_GenerateMipmap() */
struct decompress_state Decompress; /**< For texture decompression */
+ struct drawtex_state DrawTex; /**< For _mesa_meta_DrawTex() */
};
+static GLuint
+compile_shader_with_debug(struct gl_context *ctx, GLenum target, const GLcharARB *source)
+{
+ GLuint shader;
+ GLint ok, size;
+ GLchar *info;
+
+ shader = _mesa_CreateShaderObjectARB(target);
+ _mesa_ShaderSourceARB(shader, 1, &source, NULL);
+ _mesa_CompileShaderARB(shader);
+
+ _mesa_GetShaderiv(shader, GL_COMPILE_STATUS, &ok);
+ if (ok)
+ return shader;
+
+ _mesa_GetShaderiv(shader, GL_INFO_LOG_LENGTH, &size);
+ if (size == 0)
+ return 0;
+
+ info = malloc(size);
+ if (!info)
+ return 0;
+
+ _mesa_GetProgramInfoLog(shader, size, NULL, info);
+ _mesa_problem(ctx,
+ "meta program compile failed:\n%s\n"
+ "source:\n%s\n",
+ info, source);
+
+ free(info);
+
+ return 0;
+}
+
+static GLuint
+link_program_with_debug(struct gl_context *ctx, GLuint program)
+{
+ GLint ok, size;
+ GLchar *info;
+
+ _mesa_LinkProgramARB(program);
+
+ _mesa_GetProgramiv(program, GL_LINK_STATUS, &ok);
+ if (ok)
+ return program;
+
+ _mesa_GetProgramiv(program, GL_INFO_LOG_LENGTH, &size);
+ if (size == 0)
+ return 0;
+
+ info = malloc(size);
+ if (!info)
+ return 0;
+
+ _mesa_GetProgramInfoLog(program, size, NULL, info);
+ _mesa_problem(ctx, "meta program link failed:\n%s", info);
+
+ free(info);
+
+ return 0;
+}
/**
* Initialize meta-ops for a context.
memset(save, 0, sizeof(*save));
save->SavedState = state;
+ /* Pausing transform feedback needs to be done early, or else we won't be
+ * able to change other state.
+ */
+ save->TransformFeedbackNeedsResume =
+ ctx->TransformFeedback.CurrentObject->Active &&
+ !ctx->TransformFeedback.CurrentObject->Paused;
+ if (save->TransformFeedbackNeedsResume)
+ _mesa_PauseTransformFeedback();
+
if (state & MESA_META_ALPHA_TEST) {
save->AlphaEnabled = ctx->Color.AlphaEnabled;
save->AlphaFunc = ctx->Color.AlphaFunc;
_mesa_reference_shader_program(ctx, &save->FragmentShader,
ctx->Shader.CurrentFragmentProgram);
_mesa_reference_shader_program(ctx, &save->ActiveShader,
- ctx->Shader.CurrentFragmentProgram);
+ ctx->Shader.ActiveProgram);
_mesa_UseProgramObjectARB(0);
}
_mesa_set_enable(ctx, GL_TEXTURE_CUBE_MAP, GL_FALSE);
if (ctx->Extensions.NV_texture_rectangle)
_mesa_set_enable(ctx, GL_TEXTURE_RECTANGLE, GL_FALSE);
+ if (ctx->Extensions.OES_EGL_image_external)
+ _mesa_set_enable(ctx, GL_TEXTURE_EXTERNAL_OES, GL_FALSE);
_mesa_set_enable(ctx, GL_TEXTURE_GEN_S, GL_FALSE);
_mesa_set_enable(ctx, GL_TEXTURE_GEN_T, GL_FALSE);
_mesa_set_enable(ctx, GL_TEXTURE_GEN_R, GL_FALSE);
_mesa_EndConditionalRender();
}
+ if (state & MESA_META_SELECT_FEEDBACK) {
+ save->RenderMode = ctx->RenderMode;
+ if (ctx->RenderMode == GL_SELECT) {
+ save->Select = ctx->Select; /* struct copy */
+ _mesa_RenderMode(GL_RENDER);
+ } else if (ctx->RenderMode == GL_FEEDBACK) {
+ save->Feedback = ctx->Feedback; /* struct copy */
+ _mesa_RenderMode(GL_RENDER);
+ }
+ }
+
/* misc */
{
save->Lighting = ctx->Light.Enabled;
if (ctx->Light.Enabled)
_mesa_set_enable(ctx, GL_LIGHTING, GL_FALSE);
+ save->RasterDiscard = ctx->RasterDiscard;
+ if (ctx->RasterDiscard)
+ _mesa_set_enable(ctx, GL_RASTERIZER_DISCARD, GL_FALSE);
}
}
/* restore texture objects for unit[0] only */
for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) {
- _mesa_reference_texobj(&ctx->Texture.Unit[0].CurrentTex[tgt],
- save->CurrentTexture[tgt]);
+ if (ctx->Texture.Unit[0].CurrentTex[tgt] != save->CurrentTexture[tgt]) {
+ FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+ _mesa_reference_texobj(&ctx->Texture.Unit[0].CurrentTex[tgt],
+ save->CurrentTexture[tgt]);
+ }
_mesa_reference_texobj(&save->CurrentTexture[tgt], NULL);
}
- /* Re-enable textures, texgen */
+ /* Restore fixed function texture enables, texgen */
for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
- if (save->TexEnabled[u]) {
- _mesa_ActiveTextureARB(GL_TEXTURE0 + u);
-
- if (save->TexEnabled[u] & TEXTURE_1D_BIT)
- _mesa_set_enable(ctx, GL_TEXTURE_1D, GL_TRUE);
- if (save->TexEnabled[u] & TEXTURE_2D_BIT)
- _mesa_set_enable(ctx, GL_TEXTURE_2D, GL_TRUE);
- if (save->TexEnabled[u] & TEXTURE_3D_BIT)
- _mesa_set_enable(ctx, GL_TEXTURE_3D, GL_TRUE);
- if (save->TexEnabled[u] & TEXTURE_CUBE_BIT)
- _mesa_set_enable(ctx, GL_TEXTURE_CUBE_MAP, GL_TRUE);
- if (save->TexEnabled[u] & TEXTURE_RECT_BIT)
- _mesa_set_enable(ctx, GL_TEXTURE_RECTANGLE, GL_TRUE);
- }
-
- if (save->TexGenEnabled[u]) {
- _mesa_ActiveTextureARB(GL_TEXTURE0 + u);
+ if (ctx->Texture.Unit[u].Enabled != save->TexEnabled[u]) {
+ FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+ ctx->Texture.Unit[u].Enabled = save->TexEnabled[u];
+ }
- if (save->TexGenEnabled[u] & S_BIT)
- _mesa_set_enable(ctx, GL_TEXTURE_GEN_S, GL_TRUE);
- if (save->TexGenEnabled[u] & T_BIT)
- _mesa_set_enable(ctx, GL_TEXTURE_GEN_T, GL_TRUE);
- if (save->TexGenEnabled[u] & R_BIT)
- _mesa_set_enable(ctx, GL_TEXTURE_GEN_R, GL_TRUE);
- if (save->TexGenEnabled[u] & Q_BIT)
- _mesa_set_enable(ctx, GL_TEXTURE_GEN_Q, GL_TRUE);
- }
+ if (ctx->Texture.Unit[u].TexGenEnabled != save->TexGenEnabled[u]) {
+ FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+ ctx->Texture.Unit[u].TexGenEnabled = save->TexGenEnabled[u];
+ }
}
/* restore current unit state */
save->CondRenderMode);
}
+ if (state & MESA_META_SELECT_FEEDBACK) {
+ if (save->RenderMode == GL_SELECT) {
+ _mesa_RenderMode(GL_SELECT);
+ ctx->Select = save->Select;
+ } else if (save->RenderMode == GL_FEEDBACK) {
+ _mesa_RenderMode(GL_FEEDBACK);
+ ctx->Feedback = save->Feedback;
+ }
+ }
+
/* misc */
if (save->Lighting) {
_mesa_set_enable(ctx, GL_LIGHTING, GL_TRUE);
}
+ if (save->RasterDiscard) {
+ _mesa_set_enable(ctx, GL_RASTERIZER_DISCARD, GL_TRUE);
+ }
+ if (save->TransformFeedbackNeedsResume)
+ _mesa_ResumeTransformFeedback();
+}
+
+
+/**
+ * Determine whether Mesa is currently in a meta state.
+ */
+GLboolean
+_mesa_meta_in_progress(struct gl_context *ctx)
+{
+ return ctx->Meta->SaveStackDepth != 0;
}
static INLINE GLfloat
invert_z(GLfloat normZ)
{
- GLfloat objZ = 1.0 - 2.0 * normZ;
+ GLfloat objZ = 1.0f - 2.0f * normZ;
return objZ;
}
struct vertex verts[4];
GLboolean newTex;
- if (srcW > maxTexSize || srcH > maxTexSize) {
+ /* In addition to falling back if the blit size is larger than the maximum
+ * texture size, fallback if the source is multisampled. This fallback can
+ * be removed once Mesa gets support ARB_texture_multisample.
+ */
+ if (srcW > maxTexSize || srcH > maxTexSize
+ || ctx->ReadBuffer->Visual.samples > 0) {
/* XXX avoid this fallback */
_swrast_BlitFramebuffer(ctx, srcX0, srcY0, srcX1, srcY1,
dstX0, dstY0, dstX1, dstY1, mask, filter);
"{\n"
" gl_FragColor = color;\n"
"}\n";
+ const char *vs_int_source =
+ "#version 130\n"
+ "attribute vec4 position;\n"
+ "void main()\n"
+ "{\n"
+ " gl_Position = position;\n"
+ "}\n";
+ const char *fs_int_source =
+ "#version 130\n"
+ "uniform ivec4 color;\n"
+ "out ivec4 out_color;\n"
+ "\n"
+ "void main()\n"
+ "{\n"
+ " out_color = color;\n"
+ "}\n";
GLuint vs, fs;
if (clear->ArrayObj != 0)
clear->ColorLocation = _mesa_GetUniformLocationARB(clear->ShaderProg,
"color");
+
+ if (ctx->Const.GLSLVersion >= 130) {
+ vs = compile_shader_with_debug(ctx, GL_VERTEX_SHADER, vs_int_source);
+ fs = compile_shader_with_debug(ctx, GL_FRAGMENT_SHADER, fs_int_source);
+
+ clear->IntegerShaderProg = _mesa_CreateProgramObjectARB();
+ _mesa_AttachShader(clear->IntegerShaderProg, fs);
+ _mesa_AttachShader(clear->IntegerShaderProg, vs);
+ _mesa_BindAttribLocationARB(clear->IntegerShaderProg, 0, "position");
+
+ /* Note that user-defined out attributes get automatically assigned
+ * locations starting from 0, so we don't need to explicitly
+ * BindFragDataLocation to 0.
+ */
+
+ link_program_with_debug(ctx, clear->IntegerShaderProg);
+
+ clear->IntegerColorLocation =
+ _mesa_GetUniformLocationARB(clear->IntegerShaderProg, "color");
+ }
}
/**
meta_glsl_clear_init(ctx, clear);
- _mesa_UseProgramObjectARB(clear->ShaderProg);
- _mesa_Uniform4fvARB(clear->ColorLocation, 1,
- ctx->Color.ClearColor.f);
+ if (fb->_IntegerColor) {
+ _mesa_UseProgramObjectARB(clear->IntegerShaderProg);
+ _mesa_Uniform4ivARB(clear->IntegerColorLocation, 1,
+ ctx->Color.ClearColor.i);
+ } else {
+ _mesa_UseProgramObjectARB(clear->ShaderProg);
+ _mesa_Uniform4fvARB(clear->ColorLocation, 1,
+ ctx->Color.ClearColor.f);
+ }
_mesa_BindVertexArray(clear->ArrayObj);
_mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, clear->VBO);
/* setup texcoords (XXX what about border?) */
setup_texture_coords(faceTarget,
- 0.0, 0.0, /* width, height never used here */
slice,
+ 0, 0, /* width, height never used here */
verts[0].tex,
verts[1].tex,
verts[2].tex,
break;
}
- /* Set MaxLevel large enough to hold the new level when we allocate it */
+ /* Allocate storage for the destination mipmap image(s) */
+
+ /* Set MaxLevel large enough to hold the new level when we allocate it */
_mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, dstLevel);
- /* Create empty dest image */
- if (target == GL_TEXTURE_1D) {
- _mesa_TexImage1D(target, dstLevel, srcImage->InternalFormat,
- dstWidth, border,
- GL_RGBA, GL_UNSIGNED_BYTE, NULL);
- }
- else if (target == GL_TEXTURE_3D) {
- _mesa_TexImage3D(target, dstLevel, srcImage->InternalFormat,
- dstWidth, dstHeight, dstDepth, border,
- GL_RGBA, GL_UNSIGNED_BYTE, NULL);
- }
- else {
- /* 2D or cube */
- _mesa_TexImage2D(faceTarget, dstLevel, srcImage->InternalFormat,
- dstWidth, dstHeight, border,
- GL_RGBA, GL_UNSIGNED_BYTE, NULL);
-
- if (target == GL_TEXTURE_CUBE_MAP) {
- /* If texturing from a cube, we need to make sure all src faces
- * have been defined (even if we're not sampling from them.)
- * Otherwise the texture object will be 'incomplete' and
- * texturing from it will not be allowed.
- */
- GLuint face;
- for (face = 0; face < 6; face++) {
- if (!texObj->Image[face][srcLevel] ||
- texObj->Image[face][srcLevel]->Width != srcWidth) {
- _mesa_TexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face,
- srcLevel, srcImage->InternalFormat,
- srcWidth, srcHeight, border,
- GL_RGBA, GL_UNSIGNED_BYTE, NULL);
- }
- }
- }
+ if (!_mesa_prepare_mipmap_level(ctx, texObj, dstLevel,
+ dstWidth, dstHeight, dstDepth,
+ srcImage->Border,
+ srcImage->InternalFormat,
+ srcImage->TexFormat)) {
+ /* All done. We either ran out of memory or we would go beyond the
+ * last valid level of an immutable texture if we continued.
+ */
+ break;
}
/* limit minification to src level */
/* sanity check */
status = _mesa_CheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
if (status != GL_FRAMEBUFFER_COMPLETE_EXT) {
- abort();
+ _mesa_problem(ctx, "Unexpected incomplete framebuffer in "
+ "_mesa_meta_GenerateMipmap()");
break;
}
switch (baseFormat) {
case GL_RGBA:
case GL_RGB:
+ case GL_RG:
+ case GL_RED:
case GL_ALPHA:
case GL_LUMINANCE:
case GL_LUMINANCE_ALPHA:
case GL_INTENSITY:
if (ctx->DrawBuffer->Visual.redBits <= 8)
return GL_UNSIGNED_BYTE;
- else if (ctx->DrawBuffer->Visual.redBits <= 8)
+ else if (ctx->DrawBuffer->Visual.redBits <= 16)
return GL_UNSIGNED_SHORT;
else
return GL_FLOAT;
case GL_DEPTH_STENCIL:
return GL_UNSIGNED_INT_24_8;
default:
- _mesa_problem(ctx, "Unexpected format in get_temp_image_type()");
+ _mesa_problem(ctx, "Unexpected format %d in get_temp_image_type()",
+ baseFormat);
return 0;
}
}
*/
static void
copy_tex_sub_image(struct gl_context *ctx,
- GLuint dims, GLenum target, GLint level,
+ GLuint dims,
+ struct gl_texture_image *texImage,
GLint xoffset, GLint yoffset, GLint zoffset,
+ struct gl_renderbuffer *rb,
GLint x, GLint y,
GLsizei width, GLsizei height)
{
- struct gl_texture_object *texObj;
- struct gl_texture_image *texImage;
+ struct gl_texture_object *texObj = texImage->TexObject;
+ const GLenum target = texObj->Target;
GLenum format, type;
GLint bpp;
void *buf;
- texObj = _mesa_get_current_tex_object(ctx, target);
- texImage = _mesa_select_tex_image(ctx, texObj, target, level);
-
/* Choose format/type for temporary image buffer */
format = _mesa_get_format_base_format(texImage->TexFormat);
if (format == GL_LUMINANCE ||
format = GL_RGBA;
}
+ if (_mesa_is_format_integer_color(texImage->TexFormat)) {
+ _mesa_problem(ctx, "unsupported integer color copyteximage");
+ return;
+ }
+
type = get_temp_image_type(ctx, format);
bpp = _mesa_bytes_per_pixel(format, type);
if (bpp <= 0) {
*/
_mesa_meta_begin(ctx, MESA_META_PIXEL_STORE);
if (target == GL_TEXTURE_1D) {
- ctx->Driver.TexSubImage1D(ctx, target, level, xoffset,
- width, format, type, buf,
- &ctx->Unpack, texObj, texImage);
+ ctx->Driver.TexSubImage1D(ctx, texImage,
+ xoffset, width,
+ format, type, buf, &ctx->Unpack);
}
else if (target == GL_TEXTURE_3D) {
- ctx->Driver.TexSubImage3D(ctx, target, level, xoffset, yoffset, zoffset,
- width, height, 1, format, type, buf,
- &ctx->Unpack, texObj, texImage);
+ ctx->Driver.TexSubImage3D(ctx, texImage,
+ xoffset, yoffset, zoffset, width, height, 1,
+ format, type, buf, &ctx->Unpack);
}
else {
- ctx->Driver.TexSubImage2D(ctx, target, level, xoffset, yoffset,
- width, height, format, type, buf,
- &ctx->Unpack, texObj, texImage);
+ ctx->Driver.TexSubImage2D(ctx, texImage,
+ xoffset, yoffset, width, height,
+ format, type, buf, &ctx->Unpack);
}
_mesa_meta_end(ctx);
void
-_mesa_meta_CopyTexSubImage1D(struct gl_context *ctx, GLenum target, GLint level,
+_mesa_meta_CopyTexSubImage1D(struct gl_context *ctx,
+ struct gl_texture_image *texImage,
GLint xoffset,
+ struct gl_renderbuffer *rb,
GLint x, GLint y, GLsizei width)
{
- copy_tex_sub_image(ctx, 1, target, level, xoffset, 0, 0,
- x, y, width, 1);
+ copy_tex_sub_image(ctx, 1, texImage, xoffset, 0, 0,
+ rb, x, y, width, 1);
}
void
-_mesa_meta_CopyTexSubImage2D(struct gl_context *ctx, GLenum target, GLint level,
+_mesa_meta_CopyTexSubImage2D(struct gl_context *ctx,
+ struct gl_texture_image *texImage,
GLint xoffset, GLint yoffset,
+ struct gl_renderbuffer *rb,
GLint x, GLint y,
GLsizei width, GLsizei height)
{
- copy_tex_sub_image(ctx, 2, target, level, xoffset, yoffset, 0,
- x, y, width, height);
+ copy_tex_sub_image(ctx, 2, texImage, xoffset, yoffset, 0,
+ rb, x, y, width, height);
}
void
-_mesa_meta_CopyTexSubImage3D(struct gl_context *ctx, GLenum target, GLint level,
+_mesa_meta_CopyTexSubImage3D(struct gl_context *ctx,
+ struct gl_texture_image *texImage,
GLint xoffset, GLint yoffset, GLint zoffset,
+ struct gl_renderbuffer *rb,
GLint x, GLint y,
GLsizei width, GLsizei height)
{
- copy_tex_sub_image(ctx, 3, target, level, xoffset, yoffset, zoffset,
- x, y, width, height);
+ copy_tex_sub_image(ctx, 3, texImage, xoffset, yoffset, zoffset,
+ rb, x, y, width, height);
}
struct gl_texture_image *texImage,
GLuint slice,
GLenum destFormat, GLenum destType,
- GLvoid *dest, GLint destRowLength)
+ GLvoid *dest)
{
struct decompress_state *decompress = &ctx->Meta->Decompress;
struct gl_texture_object *texObj = texImage->TexObject;
fboDrawSave = ctx->DrawBuffer->Name;
fboReadSave = ctx->ReadBuffer->Name;
- _mesa_meta_begin(ctx, MESA_META_ALL);
+ _mesa_meta_begin(ctx, MESA_META_ALL & ~MESA_META_PIXEL_STORE);
/* Create/bind FBO/renderbuffer */
if (decompress->FBO == 0) {
}
/* alloc dest surface */
- if (width != decompress->Width || height != decompress->Height) {
+ if (width > decompress->Width || height > decompress->Height) {
_mesa_RenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGBA,
width, height);
decompress->Width = width;
_mesa_PixelTransferf(GL_BLUE_SCALE, 0.0f);
}
- ctx->Pack.RowLength = destRowLength;
_mesa_ReadPixels(0, 0, width, height, destFormat, destType, dest);
}
const GLuint slice = 0; /* only 2D compressed textures for now */
/* Need to unlock the texture here to prevent deadlock... */
_mesa_unlock_texture(ctx, texObj);
- decompress_texture_image(ctx, texImage, slice, format, type, pixels,
- ctx->Pack.RowLength);
+ decompress_texture_image(ctx, texImage, slice, format, type, pixels);
/* ... and relock it */
_mesa_lock_texture(ctx, texObj);
}
_mesa_get_teximage(ctx, format, type, pixels, texImage);
}
}
+
+
+/**
+ * Meta implementation of ctx->Driver.DrawTex() in terms
+ * of polygon rendering.
+ */
+void
+_mesa_meta_DrawTex(struct gl_context *ctx, GLfloat x, GLfloat y, GLfloat z,
+ GLfloat width, GLfloat height)
+{
+#if FEATURE_OES_draw_texture
+ struct drawtex_state *drawtex = &ctx->Meta->DrawTex;
+ struct vertex {
+ GLfloat x, y, z, st[MAX_TEXTURE_UNITS][2];
+ };
+ struct vertex verts[4];
+ GLuint i;
+
+ _mesa_meta_begin(ctx, (MESA_META_RASTERIZATION |
+ MESA_META_SHADER |
+ MESA_META_TRANSFORM |
+ MESA_META_VERTEX |
+ MESA_META_VIEWPORT));
+
+ if (drawtex->ArrayObj == 0) {
+ /* one-time setup */
+ GLint active_texture;
+
+ /* create vertex array object */
+ _mesa_GenVertexArrays(1, &drawtex->ArrayObj);
+ _mesa_BindVertexArray(drawtex->ArrayObj);
+
+ /* create vertex array buffer */
+ _mesa_GenBuffersARB(1, &drawtex->VBO);
+ _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, drawtex->VBO);
+ _mesa_BufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(verts),
+ NULL, GL_DYNAMIC_DRAW_ARB);
+
+ /* client active texture is not part of the array object */
+ active_texture = ctx->Array.ActiveTexture;
+
+ /* setup vertex arrays */
+ _mesa_VertexPointer(3, GL_FLOAT, sizeof(struct vertex), OFFSET(x));
+ _mesa_EnableClientState(GL_VERTEX_ARRAY);
+ for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
+ _mesa_ClientActiveTextureARB(GL_TEXTURE0 + i);
+ _mesa_TexCoordPointer(2, GL_FLOAT, sizeof(struct vertex), OFFSET(st[i]));
+ _mesa_EnableClientState(GL_TEXTURE_COORD_ARRAY);
+ }
+
+ /* restore client active texture */
+ _mesa_ClientActiveTextureARB(GL_TEXTURE0 + active_texture);
+ }
+ else {
+ _mesa_BindVertexArray(drawtex->ArrayObj);
+ _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, drawtex->VBO);
+ }
+
+ /* vertex positions, texcoords */
+ {
+ const GLfloat x1 = x + width;
+ const GLfloat y1 = y + height;
+
+ z = CLAMP(z, 0.0, 1.0);
+ z = invert_z(z);
+
+ verts[0].x = x;
+ verts[0].y = y;
+ verts[0].z = z;
+
+ verts[1].x = x1;
+ verts[1].y = y;
+ verts[1].z = z;
+
+ verts[2].x = x1;
+ verts[2].y = y1;
+ verts[2].z = z;
+
+ verts[3].x = x;
+ verts[3].y = y1;
+ verts[3].z = z;
+
+ for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
+ const struct gl_texture_object *texObj;
+ const struct gl_texture_image *texImage;
+ GLfloat s, t, s1, t1;
+ GLuint tw, th;
+
+ if (!ctx->Texture.Unit[i]._ReallyEnabled) {
+ GLuint j;
+ for (j = 0; j < 4; j++) {
+ verts[j].st[i][0] = 0.0f;
+ verts[j].st[i][1] = 0.0f;
+ }
+ continue;
+ }
+
+ texObj = ctx->Texture.Unit[i]._Current;
+ texImage = texObj->Image[0][texObj->BaseLevel];
+ tw = texImage->Width2;
+ th = texImage->Height2;
+
+ s = (GLfloat) texObj->CropRect[0] / tw;
+ t = (GLfloat) texObj->CropRect[1] / th;
+ s1 = (GLfloat) (texObj->CropRect[0] + texObj->CropRect[2]) / tw;
+ t1 = (GLfloat) (texObj->CropRect[1] + texObj->CropRect[3]) / th;
+
+ verts[0].st[i][0] = s;
+ verts[0].st[i][1] = t;
+
+ verts[1].st[i][0] = s1;
+ verts[1].st[i][1] = t;
+
+ verts[2].st[i][0] = s1;
+ verts[2].st[i][1] = t1;
+
+ verts[3].st[i][0] = s;
+ verts[3].st[i][1] = t1;
+ }
+
+ _mesa_BufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts);
+ }
+
+ _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4);
+
+ _mesa_meta_end(ctx);
+#endif /* FEATURE_OES_draw_texture */
+}
projects / mesa.git / blobdiff