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cleanups to context creation; handle 0 viewport z scale

This commit is contained in:
espes 2013-09-12 04:04:11 +10:00
parent ca76432648
commit 7116f4eb13
3 changed files with 21 additions and 14 deletions
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17
gl/gloffscreen_cgl.c
View File

@ -25,6 +25,8 @@
#include <stdio.h>
#include <string.h>
#include "qemu-common.h"
#include <OpenGL/gl.h>
#include <OpenGL/OpenGL.h>
#include <OpenGL/CGLTypes.h>
@ -41,21 +43,24 @@ struct _GloContext {
* the GLO_ constants */
GloContext *glo_context_create(int formatFlags)
{
GloContext *context;
CGLError err;
context = (GloContext *)malloc(sizeof(GloContext));
memset(context, 0, sizeof(GloContext));
GloContext *context = (GloContext *)g_malloc0(sizeof(GloContext));
/* pixel format attributes */
CGLPixelFormatAttribute attributes[] = {
CGLPixelFormatAttribute attributes[] = {
kCGLPFAAccelerated,
(CGLPixelFormatAttribute)0
};
CGLPixelFormatObj pix;
GLint num;
CGLChoosePixelFormat(attributes, &pix, &num);
CGLCreateContext(pix, NULL, &context->cglContext);
err = CGLChoosePixelFormat(attributes, &pix, &num);
if (err) return NULL;
err = CGLCreateContext(pix, NULL, &context->cglContext);
if (err) return NULL;
CGLDestroyPixelFormat(pix);
glo_set_current(context);

8
hw/xbox/nv2a.c
View File

@ -1572,12 +1572,10 @@ static void pgraph_context_init(GraphicsContext *context)
{
context->gl_context = glo_context_create(GLO_FF_DEFAULT);
/* TODO: create glo functions for Mac */
assert(context->gl_context);
/* Check context capabilities */
const GLubyte *extensions;
extensions = glGetString (GL_EXTENSIONS);
const GLubyte *extensions = glGetString(GL_EXTENSIONS);
assert(glo_check_extension((const GLubyte *)
"GL_EXT_texture_compression_s3tc",
@ -2156,13 +2154,11 @@ static void pgraph_method(NV2AState *d,
unsigned int start = GET_MASK(parameter, NV097_DRAW_ARRAYS_START_INDEX);
unsigned int count = GET_MASK(parameter, NV097_DRAW_ARRAYS_COUNT)+1;
kelvin_update_surface(d, kelvin, true);
kelvin_bind_converted_vertex_attributes(d, kelvin,
false, start + count);
glDrawArrays(kelvin->gl_primitive_mode, start, count);
kelvin->surface_color.draw_dirty = true;
break;
}
case NV097_INLINE_ARRAY:

10
hw/xbox/nv2a_vsh.c
View File

@ -664,7 +664,7 @@ QString* vsh_translate(uint16_t version,
/* the shaders leave the result in screen space, while
* opengl expects it in normalised device coords.
* opengl expects it in clip coordinates.
* Use the magic viewport constants for now,
* but they're not necessarily present.
* Same idea as above I think, but dono what the mvp stuff is about...
@ -673,7 +673,13 @@ QString* vsh_translate(uint16_t version,
"ADD R12, R12, -c[59];\n"
"RCP R1.x, c[58].x;\n"
"RCP R1.y, c[58].y;\n"
"RCP R1.z, c[58].z;\n"
/* scale_z = view_z == 0 ? 1 : 1 / view_z */
"ABS R1.z, c[58].z;\n"
"SGE R1.z, -R1.z, 0;\n"
"ADD R1.z, R1.z, c[58].z;\n"
"RCP R1.z, R1.z;\n"
"MUL R12.xyz, R12, R1;\n"
/* Z coord [0;1]->[-1;1] mapping, see comment in transform_projection