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authorBrian Paul <brian.paul@tungstengraphics.com>2006-08-01 14:33:05 +0000
committerBrian Paul <brian.paul@tungstengraphics.com>2006-08-01 14:33:05 +0000
commite724324894ec2829904341af59cbabc7a5902ad6 (patch)
treef2f9121b1a2c70ddd8a3dee8877f083a0690b403 /src/mesa/drivers/fbdev
parent9a4f15ee59f83fce31541f47ec2d0c798af10134 (diff)
renderbuffer fixes (Sean D'Epagnier)
Diffstat (limited to 'src/mesa/drivers/fbdev')
-rw-r--r--src/mesa/drivers/fbdev/glfbdev.c31
1 files changed, 21 insertions, 10 deletions
diff --git a/src/mesa/drivers/fbdev/glfbdev.c b/src/mesa/drivers/fbdev/glfbdev.c
index eaebc50f8f..412c09955f 100644
--- a/src/mesa/drivers/fbdev/glfbdev.c
+++ b/src/mesa/drivers/fbdev/glfbdev.c
@@ -501,11 +501,13 @@ renderbuffer_storage(GLcontext *ctx, struct gl_renderbuffer *rb,
static struct GLFBDevRenderbufferRec *
-new_glfbdev_renderbuffer(void *bufferStart, int pixelFormat)
+new_glfbdev_renderbuffer(void *bufferStart, const GLFBDevVisualPtr visual)
{
struct GLFBDevRenderbufferRec *rb = CALLOC_STRUCT(GLFBDevRenderbufferRec);
if (rb) {
GLuint name = 0;
+ int pixelFormat = visual->pixelFormat;
+
_mesa_init_renderbuffer(&rb->Base, name);
rb->Base.Delete = delete_renderbuffer;
@@ -566,6 +568,20 @@ new_glfbdev_renderbuffer(void *bufferStart, int pixelFormat)
}
rb->Base.DataType = GL_UNSIGNED_BYTE;
rb->Base.Data = bufferStart;
+
+ rb->rowStride = visual->var.xres_virtual * visual->var.bits_per_pixel / 8;
+ rb->bottom = (GLubyte *) bufferStart
+ + (visual->var.yres_virtual - 1) * rb->rowStride;
+
+ rb->Base.Width = visual->var.xres;
+ rb->Base.Height = visual->var.yres;
+
+ rb->Base.RedBits = visual->var.red.length;
+ rb->Base.GreenBits = visual->var.green.length;
+ rb->Base.BlueBits = visual->var.blue.length;
+ rb->Base.AlphaBits = visual->var.transp.length;
+
+ rb->Base.InternalFormat = pixelFormat;
}
return rb;
}
@@ -603,12 +619,12 @@ glFBDevCreateBuffer( const struct fb_fix_screeninfo *fixInfo,
/* basic framebuffer setup */
_mesa_initialize_framebuffer(&buf->glframebuffer, &visual->glvisual);
/* add front renderbuffer */
- frontrb = new_glfbdev_renderbuffer(frontBuffer, visual->pixelFormat);
+ frontrb = new_glfbdev_renderbuffer(frontBuffer, visual);
_mesa_add_renderbuffer(&buf->glframebuffer, BUFFER_FRONT_LEFT,
&frontrb->Base);
/* add back renderbuffer */
if (visual->glvisual.doubleBufferMode) {
- backrb = new_glfbdev_renderbuffer(backBuffer, visual->pixelFormat);
+ backrb = new_glfbdev_renderbuffer(backBuffer, visual);
_mesa_add_renderbuffer(&buf->glframebuffer, BUFFER_BACK_LEFT,
&backrb->Base);
}
@@ -628,9 +644,6 @@ glFBDevCreateBuffer( const struct fb_fix_screeninfo *fixInfo,
buf->visual = visual; /* ptr assignment */
buf->size = size;
buf->bytesPerPixel = visual->var.bits_per_pixel / 8;
- frontrb->rowStride = visual->var.xres_virtual * buf->bytesPerPixel;
- frontrb->bottom = (GLubyte *) frontrb->Base.Data
- + (visual->var.yres_virtual - 1) * frontrb->rowStride;
if (visual->glvisual.doubleBufferMode) {
if (!backBuffer) {
@@ -643,14 +656,12 @@ glFBDevCreateBuffer( const struct fb_fix_screeninfo *fixInfo,
}
backrb->mallocedBuffer = GL_TRUE;
}
- backrb->rowStride = frontrb->rowStride;
- backrb->bottom = (GLubyte *) backrb->Base.Data
- + (visual->var.yres_virtual - 1) * backrb->rowStride;
}
+ /* this causes segfault:
else {
backrb->bottom = NULL;
backrb->rowStride = 0;
- }
+ }*/
return buf;
}