mirror of
https://github.com/brl/mutter.git
synced 2024-11-29 19:40:43 -05:00
2007-04-28 Matthew Allum <mallum@openedhand.com>
* clutter/Makefile.am:
* clutter/clutter-debug.h:
* clutter/clutter-fixed.h:
* clutter/clutter-main.c:
* clutter/cogl/gles/Makefile.am:
* clutter/cogl/gles/cogl-defines.h:
* clutter/cogl/gles/cogl.c:
* clutter/egl/clutter-backend-egl.c:
* clutter/egl/clutter-backend-egl.h:
* clutter/egl/clutter-stage-egl.c:
* configure.ac:
Populate most stubs for cogl GL/ES implementation.
(against vincent - see http://svn.o-hand.com/repos/misc/ogles)
Add various fixups to EGL backend.
Code builds and runs (on 16bpp) but yet displays much (is close!)
* clutter/pango/pangoclutter-render.c:
comment out some rouge glBegin/end calls.
This commit is contained in:
Matthew Allum
parent
90d634feeb
commit
35b6b769d5
@ -15,4 +15,5 @@ noinst_LTLIBRARIES = libclutter-cogl.la
|
|||||||
|
|
||||||
libclutter_cogl_la_SOURCES = \
|
libclutter_cogl_la_SOURCES = \
|
||||||
$(top_srcdir)/clutter/cogl/cogl.h \
|
$(top_srcdir)/clutter/cogl/cogl.h \
|
||||||
|
$(top_srcdir)/clutter/cogl/gl/cogl-defines.h \
|
||||||
cogl.c
|
cogl.c
|
||||||
|
|||||||
@ -23,6 +23,8 @@
|
|||||||
* Boston, MA 02111-1307, USA.
|
* Boston, MA 02111-1307, USA.
|
||||||
*/
|
*/
|
||||||
|
|
||||||
|
#include <GLES/gl.h>
|
||||||
|
|
||||||
#ifndef __COGL_DEFINES_H__
|
#ifndef __COGL_DEFINES_H__
|
||||||
#define __COGL_DEFINES_H__
|
#define __COGL_DEFINES_H__
|
||||||
|
|
||||||
@ -435,6 +437,15 @@ G_BEGIN_DECLS
|
|||||||
#define CGL_WEIGHT_ARRAY_BUFFER_BINDING_OES GL_WEIGHT_ARRAY_BUFFER_BINDING_OES
|
#define CGL_WEIGHT_ARRAY_BUFFER_BINDING_OES GL_WEIGHT_ARRAY_BUFFER_BINDING_OES
|
||||||
#define CGL_TEXTURE_CROP_RECT_OES GL_TEXTURE_CROP_RECT_OES
|
#define CGL_TEXTURE_CROP_RECT_OES GL_TEXTURE_CROP_RECT_OES
|
||||||
|
|
||||||
|
typedef GLenum COGLenum;
|
||||||
|
typedef GLint COGLint;
|
||||||
|
|
||||||
|
/* extras */
|
||||||
|
|
||||||
|
#define CGL_TEXTURE_2D GL_TEXTURE_2D
|
||||||
|
#define CGL_ARGB GL_ARGB
|
||||||
|
#define CGL_TEXTURE_RECTANGLE_ARB 0 /* Its unlikely we support this */
|
||||||
|
|
||||||
G_END_DECLS
|
G_END_DECLS
|
||||||
|
|
||||||
#endif
|
#endif
|
||||||
|
|||||||
358
gles/cogl.c
358
gles/cogl.c
@ -23,9 +23,19 @@
|
|||||||
* Boston, MA 02111-1307, USA.
|
* Boston, MA 02111-1307, USA.
|
||||||
*/
|
*/
|
||||||
|
|
||||||
|
#include "config.h"
|
||||||
#include "cogl.h"
|
#include "cogl.h"
|
||||||
#include <GLES/gl.h>
|
|
||||||
|
|
||||||
|
#include <GLES/gl.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
|
||||||
|
#define PIXEL_TYPE GL_UNSIGNED_BYTE
|
||||||
|
#else
|
||||||
|
#define PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8_REV
|
||||||
|
#endif
|
||||||
|
|
||||||
|
static gulong __enable_flags = 0;
|
||||||
|
|
||||||
#if COGL_DEBUG
|
#if COGL_DEBUG
|
||||||
struct token_string
|
struct token_string
|
||||||
@ -97,6 +107,10 @@ cogl_paint_init (ClutterColor *color)
|
|||||||
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
|
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
|
||||||
glDisable (GL_LIGHTING);
|
glDisable (GL_LIGHTING);
|
||||||
glDisable (GL_DEPTH_TEST);
|
glDisable (GL_DEPTH_TEST);
|
||||||
|
|
||||||
|
cogl_enable (CGL_ENABLE_BLEND);
|
||||||
|
|
||||||
|
glTexEnvx (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
|
||||||
}
|
}
|
||||||
|
|
||||||
/* FIXME: inline most of these */
|
/* FIXME: inline most of these */
|
||||||
@ -113,7 +127,7 @@ cogl_pop_matrix (void)
|
|||||||
}
|
}
|
||||||
|
|
||||||
void
|
void
|
||||||
cogl_scaled (ClutterFixed x, ClutterFixed y)
|
cogl_scale (ClutterFixed x, ClutterFixed y)
|
||||||
{
|
{
|
||||||
GE( glScalex (x, y, CFX_ONE) );
|
GE( glScalex (x, y, CFX_ONE) );
|
||||||
}
|
}
|
||||||
@ -144,8 +158,346 @@ cogl_rotatex (ClutterFixed angle,
|
|||||||
void
|
void
|
||||||
cogl_rotate (gint angle, gint x, gint y, gint z)
|
cogl_rotate (gint angle, gint x, gint y, gint z)
|
||||||
{
|
{
|
||||||
GE( glRotatef (CLUTTER_INT_TO_FIXED(angle),
|
GE( glRotatex (CLUTTER_INT_TO_FIXED(angle),
|
||||||
CLUTTER_INT_TO_FIXED(x),
|
CLUTTER_INT_TO_FIXED(x),
|
||||||
CLUTTER_INT_TO_FIXED(y),
|
CLUTTER_INT_TO_FIXED(y),
|
||||||
CLUTTER_INT_TO_FIXED(z)) );
|
CLUTTER_INT_TO_FIXED(z)) );
|
||||||
}
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
cogl_enable (gulong flags)
|
||||||
|
{
|
||||||
|
/* This function essentially caches glEnable state() in the
|
||||||
|
* hope of lessening number GL traffic.
|
||||||
|
*/
|
||||||
|
if (flags & CGL_ENABLE_BLEND)
|
||||||
|
{
|
||||||
|
if (!(__enable_flags & CGL_ENABLE_BLEND))
|
||||||
|
{
|
||||||
|
glEnable (GL_BLEND);
|
||||||
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
||||||
|
}
|
||||||
|
__enable_flags |= CGL_ENABLE_BLEND;
|
||||||
|
}
|
||||||
|
else if (__enable_flags & CGL_ENABLE_BLEND)
|
||||||
|
{
|
||||||
|
glDisable (GL_BLEND);
|
||||||
|
__enable_flags &= ~CGL_ENABLE_BLEND;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (flags & CGL_ENABLE_TEXTURE_2D)
|
||||||
|
{
|
||||||
|
if (!(__enable_flags & CGL_ENABLE_TEXTURE_2D))
|
||||||
|
glEnable (GL_TEXTURE_2D);
|
||||||
|
__enable_flags |= CGL_ENABLE_TEXTURE_2D;
|
||||||
|
}
|
||||||
|
else if (__enable_flags & CGL_ENABLE_TEXTURE_2D)
|
||||||
|
{
|
||||||
|
glDisable (GL_TEXTURE_2D);
|
||||||
|
__enable_flags &= ~CGL_ENABLE_TEXTURE_2D;
|
||||||
|
}
|
||||||
|
|
||||||
|
#if 0
|
||||||
|
if (flags & CGL_ENABLE_TEXTURE_RECT)
|
||||||
|
{
|
||||||
|
if (!(__enable_flags & CGL_ENABLE_TEXTURE_RECT))
|
||||||
|
glEnable (GL_TEXTURE_RECTANGLE_ARB);
|
||||||
|
|
||||||
|
__enable_flags |= CGL_ENABLE_TEXTURE_RECT;
|
||||||
|
}
|
||||||
|
else if (__enable_flags & CGL_ENABLE_TEXTURE_RECT)
|
||||||
|
{
|
||||||
|
glDisable (GL_TEXTURE_RECTANGLE_ARB);
|
||||||
|
__enable_flags &= ~CGL_ENABLE_TEXTURE_RECT;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
if (flags & CGL_ENABLE_ALPHA_TEST)
|
||||||
|
{
|
||||||
|
if (!(__enable_flags & CGL_ENABLE_ALPHA_TEST))
|
||||||
|
glEnable (GL_ALPHA_TEST);
|
||||||
|
|
||||||
|
__enable_flags |= CGL_ENABLE_ALPHA_TEST;
|
||||||
|
}
|
||||||
|
else if (__enable_flags & CGL_ENABLE_ALPHA_TEST)
|
||||||
|
{
|
||||||
|
glDisable (GL_ALPHA_TEST);
|
||||||
|
__enable_flags &= ~CGL_ENABLE_ALPHA_TEST;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
cogl_color (ClutterColor *color)
|
||||||
|
{
|
||||||
|
#define FIX(x) CFX_DIV(CLUTTER_INT_TO_FIXED(x), CFX_255)
|
||||||
|
|
||||||
|
GE( glColor4x (FIX(color->red),
|
||||||
|
FIX(color->green),
|
||||||
|
FIX(color->blue),
|
||||||
|
FIX(color->alpha)) );
|
||||||
|
#undef FIX
|
||||||
|
}
|
||||||
|
|
||||||
|
gboolean
|
||||||
|
cogl_texture_can_size (COGLenum pixel_format,
|
||||||
|
COGLenum pixel_type,
|
||||||
|
int width,
|
||||||
|
int height)
|
||||||
|
{
|
||||||
|
GLint new_width = 0;
|
||||||
|
|
||||||
|
/* FIXME */
|
||||||
|
return TRUE;
|
||||||
|
|
||||||
|
#if 0
|
||||||
|
GE( glTexImage2D (GL_PROXY_TEXTURE_2D, 0, GL_RGBA,
|
||||||
|
width, height, 0 /* border */,
|
||||||
|
pixel_format, pixel_type, NULL) );
|
||||||
|
|
||||||
|
GE( glGetTexLevelParameteriv (GL_PROXY_TEXTURE_2D, 0,
|
||||||
|
GL_TEXTURE_WIDTH, &new_width) );
|
||||||
|
|
||||||
|
return new_width != 0;
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
cogl_texture_quad (gint x1,
|
||||||
|
gint x2,
|
||||||
|
gint y1,
|
||||||
|
gint y2,
|
||||||
|
ClutterFixed tx1,
|
||||||
|
ClutterFixed ty1,
|
||||||
|
ClutterFixed tx2,
|
||||||
|
ClutterFixed ty2)
|
||||||
|
{
|
||||||
|
GLfixed quadVerts[] = {
|
||||||
|
x1, y1, 0,
|
||||||
|
x2, y1, 0,
|
||||||
|
x2, y2, 0,
|
||||||
|
x2, y2, 0,
|
||||||
|
x1, y2, 0,
|
||||||
|
x1, y1, 0
|
||||||
|
};
|
||||||
|
|
||||||
|
GLfixed quadTex[] = {
|
||||||
|
tx1, ty1,
|
||||||
|
tx2, ty1,
|
||||||
|
tx2, ty2,
|
||||||
|
tx2, ty2,
|
||||||
|
tx1, ty2,
|
||||||
|
tx1, ty1
|
||||||
|
};
|
||||||
|
|
||||||
|
glEnableClientState(GL_VERTEX_ARRAY);
|
||||||
|
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
|
||||||
|
glVertexPointer(3, GL_FIXED, 0, quadVerts);
|
||||||
|
glTexCoordPointer(2, GL_FIXED, 0, quadTex);
|
||||||
|
|
||||||
|
glDrawArrays(GL_TRIANGLES, 0, 6);
|
||||||
|
|
||||||
|
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
|
||||||
|
glDisableClientState(GL_VERTEX_ARRAY);
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
cogl_textures_create (guint num, guint *textures)
|
||||||
|
{
|
||||||
|
GE( glGenTextures (num, textures) );
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
cogl_textures_destroy (guint num, const guint *textures)
|
||||||
|
{
|
||||||
|
GE( glDeleteTextures (num, textures) );
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
cogl_texture_bind (COGLenum target, guint texture)
|
||||||
|
{
|
||||||
|
GE( glBindTexture (target, texture) );
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
cogl_texture_set_alignment (COGLenum target,
|
||||||
|
guint alignment,
|
||||||
|
guint row_length)
|
||||||
|
{
|
||||||
|
/* GE( glPixelStorei (GL_UNPACK_ROW_LENGTH, row_length) ); */
|
||||||
|
GE( glPixelStorei (GL_UNPACK_ALIGNMENT, alignment) );
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
cogl_texture_set_filters (COGLenum target,
|
||||||
|
COGLenum min_filter,
|
||||||
|
COGLenum max_filter)
|
||||||
|
{
|
||||||
|
GE( glTexParameteri(target, GL_TEXTURE_MAG_FILTER, max_filter) );
|
||||||
|
GE( glTexParameteri(target, GL_TEXTURE_MIN_FILTER, min_filter) );
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
cogl_texture_set_wrap (COGLenum target,
|
||||||
|
COGLenum wrap_s,
|
||||||
|
COGLenum wrap_t)
|
||||||
|
{
|
||||||
|
GE( glTexParameteri(target, GL_TEXTURE_WRAP_S, wrap_s) );
|
||||||
|
GE( glTexParameteri(target, GL_TEXTURE_WRAP_T, wrap_s) );
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
cogl_texture_image_2d (COGLenum target,
|
||||||
|
COGLint internal_format,
|
||||||
|
gint width,
|
||||||
|
gint height,
|
||||||
|
COGLenum format,
|
||||||
|
COGLenum type,
|
||||||
|
const guchar* pixels)
|
||||||
|
{
|
||||||
|
GE( glTexImage2D (target,
|
||||||
|
0, /* No mipmap support as yet */
|
||||||
|
internal_format,
|
||||||
|
width,
|
||||||
|
height,
|
||||||
|
0, /* 0 pixel border */
|
||||||
|
format,
|
||||||
|
type,
|
||||||
|
pixels) );
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
cogl_texture_sub_image_2d (COGLenum target,
|
||||||
|
gint xoff,
|
||||||
|
gint yoff,
|
||||||
|
gint width,
|
||||||
|
gint height,
|
||||||
|
COGLenum format,
|
||||||
|
COGLenum type,
|
||||||
|
const guchar* pixels)
|
||||||
|
{
|
||||||
|
GE( glTexSubImage2D (target,
|
||||||
|
0,
|
||||||
|
xoff,
|
||||||
|
yoff,
|
||||||
|
width,
|
||||||
|
height,
|
||||||
|
format,
|
||||||
|
type,
|
||||||
|
pixels));
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
cogl_rectangle (gint x, gint y, guint width, guint height)
|
||||||
|
{
|
||||||
|
#define FIX CLUTTER_INT_TO_FIXED
|
||||||
|
|
||||||
|
GLfixed rect_verts[] = {
|
||||||
|
FIX(x), FIX(y),
|
||||||
|
FIX(x + width), FIX(y),
|
||||||
|
FIX(x), FIX(y + height),
|
||||||
|
FIX(x + width), FIX(y + height),
|
||||||
|
};
|
||||||
|
|
||||||
|
#undef FIX
|
||||||
|
|
||||||
|
GE( glVertexPointer(2, GL_FIXED, 0, rect_verts) );
|
||||||
|
GE( glEnableClientState(GL_VERTEX_ARRAY) );
|
||||||
|
GE( glDrawArrays(GL_TRIANGLE_STRIP, 0, 4) );
|
||||||
|
GE( glDisableClientState(GL_VERTEX_ARRAY) );
|
||||||
|
}
|
||||||
|
|
||||||
|
/* FIXME: Should use ClutterReal or Fixed */
|
||||||
|
void
|
||||||
|
cogl_trapezoid (gint y1,
|
||||||
|
gint x11,
|
||||||
|
gint x21,
|
||||||
|
gint y2,
|
||||||
|
gint x12,
|
||||||
|
gint x22)
|
||||||
|
{
|
||||||
|
/* FIXME */
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
void
|
||||||
|
cogl_alpha_func (COGLenum func,
|
||||||
|
ClutterFixed ref)
|
||||||
|
{
|
||||||
|
GE( glAlphaFunc (func, CLUTTER_FIXED_TO_FLOAT(ref)) );
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Fixed point implementation of the perspective function
|
||||||
|
*/
|
||||||
|
void
|
||||||
|
cogl_perspective (ClutterAngle fovy,
|
||||||
|
ClutterFixed aspect,
|
||||||
|
ClutterFixed zNear,
|
||||||
|
ClutterFixed zFar)
|
||||||
|
{
|
||||||
|
ClutterFixed xmax, ymax;
|
||||||
|
ClutterFixed x, y, c, d;
|
||||||
|
|
||||||
|
GLfixed m[16];
|
||||||
|
|
||||||
|
memset (&m[0], 0, sizeof (m));
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Based on the original algorithm in perspective():
|
||||||
|
*
|
||||||
|
* 1) xmin = -xmax => xmax + xmin == 0 && xmax - xmin == 2 * xmax
|
||||||
|
* same true for y, hence: a == 0 && b == 0;
|
||||||
|
*
|
||||||
|
* 2) When working with small numbers, we can are loosing significant
|
||||||
|
* precision, hence we use clutter_qmulx() here, not the fast macro.
|
||||||
|
*/
|
||||||
|
ymax = clutter_qmulx (zNear, clutter_tani (fovy >> 1));
|
||||||
|
xmax = clutter_qmulx (ymax, aspect);
|
||||||
|
|
||||||
|
x = CFX_DIV (zNear, xmax);
|
||||||
|
y = CFX_DIV (zNear, ymax);
|
||||||
|
c = CFX_DIV (-(zFar + zNear), ( zFar - zNear));
|
||||||
|
d = CFX_DIV (-(clutter_qmulx (2*zFar, zNear)), (zFar - zNear));
|
||||||
|
|
||||||
|
#define M(row,col) m[col*4+row]
|
||||||
|
M(0,0) = x;
|
||||||
|
M(1,1) = y;
|
||||||
|
M(2,2) = c;
|
||||||
|
M(2,3) = d;
|
||||||
|
M(3,2) = 1 + ~CFX_ONE;
|
||||||
|
|
||||||
|
GE( glMultMatrixx (m) );
|
||||||
|
#undef M
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
cogl_setup_viewport (guint width,
|
||||||
|
guint height,
|
||||||
|
ClutterAngle fovy,
|
||||||
|
ClutterFixed aspect,
|
||||||
|
ClutterFixed z_near,
|
||||||
|
ClutterFixed z_far)
|
||||||
|
{
|
||||||
|
GE( glViewport (0, 0, width, height) );
|
||||||
|
|
||||||
|
GE( glMatrixMode (GL_PROJECTION) );
|
||||||
|
GE( glLoadIdentity () );
|
||||||
|
|
||||||
|
cogl_perspective (fovy, aspect, z_near, z_far);
|
||||||
|
|
||||||
|
GE( glMatrixMode (GL_MODELVIEW) );
|
||||||
|
GE( glLoadIdentity () );
|
||||||
|
|
||||||
|
/* camera distance from screen, 0.5 * tan (FOV) */
|
||||||
|
#define DEFAULT_Z_CAMERA 0.866025404f
|
||||||
|
|
||||||
|
GE( glTranslatex (-CFX_HALF,
|
||||||
|
-CFX_HALF,
|
||||||
|
-CLUTTER_FLOAT_TO_FIXED(DEFAULT_Z_CAMERA)) );
|
||||||
|
|
||||||
|
GE( glScalex ( CFX_DIV(CFX_ONE, CLUTTER_INT_TO_FIXED(width)),
|
||||||
|
-CFX_DIV(CFX_ONE, CLUTTER_INT_TO_FIXED(height)),
|
||||||
|
CFX_DIV(CFX_ONE, CLUTTER_INT_TO_FIXED(width))) );
|
||||||
|
|
||||||
|
GE( glTranslatex (0, -CFX_DIV(CFX_ONE, CLUTTER_INT_TO_FIXED(height)), 0) );
|
||||||
|
}
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user